From e4b083d49bca26cc8b6eaa335cbd35ce41063378 Mon Sep 17 00:00:00 2001
From: Mark McGranaghan <mmcgrana@gmail.com>
Date: Sun, 23 Sep 2012 17:45:04 -0700
Subject: [PATCH] index work

---
 {049-timers => 039-timers}/timers.go          |  0
 {049-timers => 039-timers}/tiners.sh          |  0
 {050-tickers => 040-tickers}/tickers.go       |  0
 {050-tickers => 040-tickers}/tickers.sh       |  0
 {039-sorting => 041-sorting}/sorting.go       |  0
 {039-sorting => 041-sorting}/sorting.sh       |  0
 .../sorting-by-functions.go                   |  0
 .../sorting-by-functions.sh                   |  0
 .../collection-functions.go                   |  0
 .../string-functions.go                       |  0
 .../string-formatting.go                      |  0
 .../string-formatting.sh                      |  0
 {043-regexs => 046-regexs}/regexs.go          |  0
 {043-regexs => 046-regexs}/regexs.sh          |  0
 {044-bytes => 047-bytes}/bytes.go             |  0
 {045-json => 048-json}/json.go                |  0
 {046-time => 049-time}/time.go                |  0
 {046-time => 049-time}/time.sh                |  0
 {047-epochs => 050-epochs}/epochs.go          |  0
 {047-epochs => 050-epochs}/epochs.sh          |  0
 .../elapsed-time.go                           |  0
 .../random-numbers.go                         |  0
 .../random-numbers.sh                         |  0
 .../number-parsing.go                         |  0
 .../number-parsing.sh                         |  0
 056-file-open/file-open.go                    | 21 -------------------
 .../reading-files.go                          |  5 ++++-
 .../writing-files.go                          |  4 +++-
 .../command-line-arguments.go                 |  0
 .../command-line-arguments.sh                 |  0
 .../command-line-flags.go                     |  0
 .../environment-variables.go                  |  2 +-
 .../environment-variables.sh                  |  6 ++++++
 061-env/env.sh                                |  6 ------
 .../spawning-processes.go                     |  5 +++--
 .../spawning-processes.sh                     |  4 ++--
 .../execing-processes.go                      |  4 +++-
 {062-signals => 063-signals}/signals.go       |  2 ++
 {062-signals => 063-signals}/signals.sh       |  0
 {063-exit => 064-exit}/exit.go                |  0
 {063-exit => 064-exit}/exit.sh                |  0
 .../reading-input.go                          |  0
 .../reading-input.sh                          |  0
 .../line-filter.go                            |  0
 .../line-filter.sh                            |  0
 067-users/users.go                            | 11 ----------
 067-users/users.sh                            |  3 ---
 .../tcp-client.go                             |  0
 .../tcp-client.sh                             |  0
 .../http-client.go                            |  0
 .../http-client-basic.go                      |  0
 .../https-client.go                           |  0
 {074-redis => 072-redis}/redis.go             |  0
 {074-redis => 072-redis}/redis.sh             |  0
 {075-postgres => 073-postgres}/postgres.go    |  0
 {075-postgres => 073-postgres}/postgres.sh    |  0
 .../sending-email.go                          |  0
 .../http-server-basic.go                      |  0
 .../http-server-canonical-host.go             |  0
 .../http-server-canonical-host.sh             |  0
 .../http-server-graceful-shutdown.go          |  0
 .../http-server-graceful-shutdown.sh          |  0
 .../http-server-log.go                        |  0
 .../http-server-middleware.go                 |  0
 .../http-server-routing.go                    |  0
 .../http-server-routing.sh                    |  0
 .../http-server-static-dynamic.go             |  0
 .../http-server-static-dynamic.sh             |  0
 .../http-server-static-select.go              |  0
 .../http-server-static-select.sh              |  0
 .../http-server-static.go                     |  0
 .../http-server-static.sh                     |  0
 .../http-server-status-code.go                |  0
 .../http-server-status-code.sh                |  0
 .../http-server.go                            |  0
 .../https-server.go                           |  0
 .../https-server.sh                           |  0
 tool/index.txt                                | 13 ++++++------
 78 files changed, 30 insertions(+), 56 deletions(-)
 rename {049-timers => 039-timers}/timers.go (100%)
 rename {049-timers => 039-timers}/tiners.sh (100%)
 rename {050-tickers => 040-tickers}/tickers.go (100%)
 rename {050-tickers => 040-tickers}/tickers.sh (100%)
 rename {039-sorting => 041-sorting}/sorting.go (100%)
 rename {039-sorting => 041-sorting}/sorting.sh (100%)
 rename {040-sorting-by-functions => 042-sorting-by-functions}/sorting-by-functions.go (100%)
 rename {040-sorting-by-functions => 042-sorting-by-functions}/sorting-by-functions.sh (100%)
 rename {061-collection-functions.go => 043-collection-functions}/collection-functions.go (100%)
 rename {041-string-functions => 044-string-functions}/string-functions.go (100%)
 rename {042-string-formatting => 045-string-formatting}/string-formatting.go (100%)
 rename {042-string-formatting => 045-string-formatting}/string-formatting.sh (100%)
 rename {043-regexs => 046-regexs}/regexs.go (100%)
 rename {043-regexs => 046-regexs}/regexs.sh (100%)
 rename {044-bytes => 047-bytes}/bytes.go (100%)
 rename {045-json => 048-json}/json.go (100%)
 rename {046-time => 049-time}/time.go (100%)
 rename {046-time => 049-time}/time.sh (100%)
 rename {047-epochs => 050-epochs}/epochs.go (100%)
 rename {047-epochs => 050-epochs}/epochs.sh (100%)
 rename {048-elapsed-time => 051-elapsed-time}/elapsed-time.go (100%)
 rename {051-random-numbers => 052-random-numbers}/random-numbers.go (100%)
 rename {051-random-numbers => 052-random-numbers}/random-numbers.sh (100%)
 rename {052-number-parsing => 053-number-parsing}/number-parsing.go (100%)
 rename {052-number-parsing => 053-number-parsing}/number-parsing.sh (100%)
 delete mode 100644 056-file-open/file-open.go
 rename 057-file-read/file-read.go => 056-reading-files/reading-files.go (80%)
 rename 058-file-write/file-write.go => 057-writing-files/writing-files.go (80%)
 rename {059-command-line-arguments => 058-command-line-arguments}/command-line-arguments.go (100%)
 rename {059-command-line-arguments => 058-command-line-arguments}/command-line-arguments.sh (100%)
 rename {060-command-line-flags => 059-command-line-flags}/command-line-flags.go (100%)
 rename 061-env/env.go => 060-environment-variables/environment-variables.go (96%)
 create mode 100644 060-environment-variables/environment-variables.sh
 delete mode 100644 061-env/env.sh
 rename 064-spawn/spawn.go => 061-spawning-processes/spawning-processes.go (79%)
 rename 064-spawn/spawn.sh => 061-spawning-processes/spawning-processes.sh (53%)
 rename 065-exec/exec.go => 062-execing-processes/execing-processes.go (83%)
 rename {062-signals => 063-signals}/signals.go (91%)
 rename {062-signals => 063-signals}/signals.sh (100%)
 rename {063-exit => 064-exit}/exit.go (100%)
 rename {063-exit => 064-exit}/exit.sh (100%)
 rename {066-reading-input => 065-reading-input}/reading-input.go (100%)
 rename {066-reading-input => 065-reading-input}/reading-input.sh (100%)
 rename {068-line-filter => 066-line-filter}/line-filter.go (100%)
 rename {068-line-filter => 066-line-filter}/line-filter.sh (100%)
 delete mode 100644 067-users/users.go
 delete mode 100644 067-users/users.sh
 rename {070-tcp-client => 068-tcp-client}/tcp-client.go (100%)
 rename {070-tcp-client => 068-tcp-client}/tcp-client.sh (100%)
 rename {071-http-client => 069-http-client}/http-client.go (100%)
 rename {072-http-client-basic => 070-http-client-basic}/http-client-basic.go (100%)
 rename {073-https-client => 071-https-client}/https-client.go (100%)
 rename {074-redis => 072-redis}/redis.go (100%)
 rename {074-redis => 072-redis}/redis.sh (100%)
 rename {075-postgres => 073-postgres}/postgres.go (100%)
 rename {075-postgres => 073-postgres}/postgres.sh (100%)
 rename {076-sending-email => 074-sending-email}/sending-email.go (100%)
 rename {077-http-server-basic => 075-http-server-basic}/http-server-basic.go (100%)
 rename {078-http-server-canonical-host => 076-http-server-canonical-host}/http-server-canonical-host.go (100%)
 rename {078-http-server-canonical-host => 076-http-server-canonical-host}/http-server-canonical-host.sh (100%)
 rename {079-http-server-graceful-shutdown => 077-http-server-graceful-shutdown}/http-server-graceful-shutdown.go (100%)
 rename {079-http-server-graceful-shutdown => 077-http-server-graceful-shutdown}/http-server-graceful-shutdown.sh (100%)
 rename {080-http-server-log => 078-http-server-log}/http-server-log.go (100%)
 rename {081-http-server-middleware => 079-http-server-middleware}/http-server-middleware.go (100%)
 rename {082-http-server-routing => 080-http-server-routing}/http-server-routing.go (100%)
 rename {082-http-server-routing => 080-http-server-routing}/http-server-routing.sh (100%)
 rename {083-http-server-static-dynamic => 081-http-server-static-dynamic}/http-server-static-dynamic.go (100%)
 rename {083-http-server-static-dynamic => 081-http-server-static-dynamic}/http-server-static-dynamic.sh (100%)
 rename {084-http-server-static-select => 082-http-server-static-select}/http-server-static-select.go (100%)
 rename {084-http-server-static-select => 082-http-server-static-select}/http-server-static-select.sh (100%)
 rename {085-http-server-static => 083-http-server-static}/http-server-static.go (100%)
 rename {085-http-server-static => 083-http-server-static}/http-server-static.sh (100%)
 rename {086-http-server-status-code => 084-http-server-status-code}/http-server-status-code.go (100%)
 rename {086-http-server-status-code => 084-http-server-status-code}/http-server-status-code.sh (100%)
 rename {087-http-server => 085-http-server}/http-server.go (100%)
 rename {088-https-server => 086-https-server}/https-server.go (100%)
 rename {088-https-server => 086-https-server}/https-server.sh (100%)

diff --git a/049-timers/timers.go b/039-timers/timers.go
similarity index 100%
rename from 049-timers/timers.go
rename to 039-timers/timers.go
diff --git a/049-timers/tiners.sh b/039-timers/tiners.sh
similarity index 100%
rename from 049-timers/tiners.sh
rename to 039-timers/tiners.sh
diff --git a/050-tickers/tickers.go b/040-tickers/tickers.go
similarity index 100%
rename from 050-tickers/tickers.go
rename to 040-tickers/tickers.go
diff --git a/050-tickers/tickers.sh b/040-tickers/tickers.sh
similarity index 100%
rename from 050-tickers/tickers.sh
rename to 040-tickers/tickers.sh
diff --git a/039-sorting/sorting.go b/041-sorting/sorting.go
similarity index 100%
rename from 039-sorting/sorting.go
rename to 041-sorting/sorting.go
diff --git a/039-sorting/sorting.sh b/041-sorting/sorting.sh
similarity index 100%
rename from 039-sorting/sorting.sh
rename to 041-sorting/sorting.sh
diff --git a/040-sorting-by-functions/sorting-by-functions.go b/042-sorting-by-functions/sorting-by-functions.go
similarity index 100%
rename from 040-sorting-by-functions/sorting-by-functions.go
rename to 042-sorting-by-functions/sorting-by-functions.go
diff --git a/040-sorting-by-functions/sorting-by-functions.sh b/042-sorting-by-functions/sorting-by-functions.sh
similarity index 100%
rename from 040-sorting-by-functions/sorting-by-functions.sh
rename to 042-sorting-by-functions/sorting-by-functions.sh
diff --git a/061-collection-functions.go/collection-functions.go b/043-collection-functions/collection-functions.go
similarity index 100%
rename from 061-collection-functions.go/collection-functions.go
rename to 043-collection-functions/collection-functions.go
diff --git a/041-string-functions/string-functions.go b/044-string-functions/string-functions.go
similarity index 100%
rename from 041-string-functions/string-functions.go
rename to 044-string-functions/string-functions.go
diff --git a/042-string-formatting/string-formatting.go b/045-string-formatting/string-formatting.go
similarity index 100%
rename from 042-string-formatting/string-formatting.go
rename to 045-string-formatting/string-formatting.go
diff --git a/042-string-formatting/string-formatting.sh b/045-string-formatting/string-formatting.sh
similarity index 100%
rename from 042-string-formatting/string-formatting.sh
rename to 045-string-formatting/string-formatting.sh
diff --git a/043-regexs/regexs.go b/046-regexs/regexs.go
similarity index 100%
rename from 043-regexs/regexs.go
rename to 046-regexs/regexs.go
diff --git a/043-regexs/regexs.sh b/046-regexs/regexs.sh
similarity index 100%
rename from 043-regexs/regexs.sh
rename to 046-regexs/regexs.sh
diff --git a/044-bytes/bytes.go b/047-bytes/bytes.go
similarity index 100%
rename from 044-bytes/bytes.go
rename to 047-bytes/bytes.go
diff --git a/045-json/json.go b/048-json/json.go
similarity index 100%
rename from 045-json/json.go
rename to 048-json/json.go
diff --git a/046-time/time.go b/049-time/time.go
similarity index 100%
rename from 046-time/time.go
rename to 049-time/time.go
diff --git a/046-time/time.sh b/049-time/time.sh
similarity index 100%
rename from 046-time/time.sh
rename to 049-time/time.sh
diff --git a/047-epochs/epochs.go b/050-epochs/epochs.go
similarity index 100%
rename from 047-epochs/epochs.go
rename to 050-epochs/epochs.go
diff --git a/047-epochs/epochs.sh b/050-epochs/epochs.sh
similarity index 100%
rename from 047-epochs/epochs.sh
rename to 050-epochs/epochs.sh
diff --git a/048-elapsed-time/elapsed-time.go b/051-elapsed-time/elapsed-time.go
similarity index 100%
rename from 048-elapsed-time/elapsed-time.go
rename to 051-elapsed-time/elapsed-time.go
diff --git a/051-random-numbers/random-numbers.go b/052-random-numbers/random-numbers.go
similarity index 100%
rename from 051-random-numbers/random-numbers.go
rename to 052-random-numbers/random-numbers.go
diff --git a/051-random-numbers/random-numbers.sh b/052-random-numbers/random-numbers.sh
similarity index 100%
rename from 051-random-numbers/random-numbers.sh
rename to 052-random-numbers/random-numbers.sh
diff --git a/052-number-parsing/number-parsing.go b/053-number-parsing/number-parsing.go
similarity index 100%
rename from 052-number-parsing/number-parsing.go
rename to 053-number-parsing/number-parsing.go
diff --git a/052-number-parsing/number-parsing.sh b/053-number-parsing/number-parsing.sh
similarity index 100%
rename from 052-number-parsing/number-parsing.sh
rename to 053-number-parsing/number-parsing.sh
diff --git a/056-file-open/file-open.go b/056-file-open/file-open.go
deleted file mode 100644
index cd25a7a..0000000
--- a/056-file-open/file-open.go
+++ /dev/null
@@ -1,21 +0,0 @@
-// ## File Open
-
-package main
-
-import "os"
-import "fmt"
-
-func main() {
-    file, err := os.Open("xx-file-open.go")
-    if err != nil {
-        panic(err)
-    }
-    defer file.Close()
-    
-    stat, err := file.Stat()
-    if err != nil {
-        panic(err)
-    }
-
-	fmt.Println("Program has", stat.Size(), "bytes")
-}
diff --git a/057-file-read/file-read.go b/056-reading-files/reading-files.go
similarity index 80%
rename from 057-file-read/file-read.go
rename to 056-reading-files/reading-files.go
index c636c8a..720a705 100644
--- a/057-file-read/file-read.go
+++ b/056-reading-files/reading-files.go
@@ -1,4 +1,4 @@
-// ## File Read
+// ## Reading files
 
 package main
 
@@ -12,3 +12,6 @@ func main() {
     }
     fmt.Print(string(contents))
 }
+
+
+// todo: streaming reads
diff --git a/058-file-write/file-write.go b/057-writing-files/writing-files.go
similarity index 80%
rename from 058-file-write/file-write.go
rename to 057-writing-files/writing-files.go
index f25b83d..e1c4d08 100644
--- a/058-file-write/file-write.go
+++ b/057-writing-files/writing-files.go
@@ -1,4 +1,4 @@
-// ## File Write
+// ## Writing Files
 
 package main
 
@@ -12,3 +12,5 @@ func main() {
     defer file.Close()
     file.WriteString("contents\n")
 }
+
+// todo: streaming writes
diff --git a/059-command-line-arguments/command-line-arguments.go b/058-command-line-arguments/command-line-arguments.go
similarity index 100%
rename from 059-command-line-arguments/command-line-arguments.go
rename to 058-command-line-arguments/command-line-arguments.go
diff --git a/059-command-line-arguments/command-line-arguments.sh b/058-command-line-arguments/command-line-arguments.sh
similarity index 100%
rename from 059-command-line-arguments/command-line-arguments.sh
rename to 058-command-line-arguments/command-line-arguments.sh
diff --git a/060-command-line-flags/command-line-flags.go b/059-command-line-flags/command-line-flags.go
similarity index 100%
rename from 060-command-line-flags/command-line-flags.go
rename to 059-command-line-flags/command-line-flags.go
diff --git a/061-env/env.go b/060-environment-variables/environment-variables.go
similarity index 96%
rename from 061-env/env.go
rename to 060-environment-variables/environment-variables.go
index 45a54e0..31ecc64 100644
--- a/061-env/env.go
+++ b/060-environment-variables/environment-variables.go
@@ -1,4 +1,4 @@
-// ## Env
+// ## Environment Variables
 
 package main                           
 
diff --git a/060-environment-variables/environment-variables.sh b/060-environment-variables/environment-variables.sh
new file mode 100644
index 0000000..9a0d5c1
--- /dev/null
+++ b/060-environment-variables/environment-variables.sh
@@ -0,0 +1,6 @@
+$ go run environment-variables.go
+HOME
+PATH
+PWD
+...
+bar
diff --git a/061-env/env.sh b/061-env/env.sh
deleted file mode 100644
index 968d927..0000000
--- a/061-env/env.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-$ go run env.go
-HOME
-PATH
-PWD
-...
-bar
diff --git a/064-spawn/spawn.go b/061-spawning-processes/spawning-processes.go
similarity index 79%
rename from 064-spawn/spawn.go
rename to 061-spawning-processes/spawning-processes.go
index c1d0380..e9ea292 100644
--- a/064-spawn/spawn.go
+++ b/061-spawning-processes/spawning-processes.go
@@ -1,8 +1,9 @@
-// ## Spawn
+// ## Spawning Processes
 
 package main
 
-import ("os/exec"; "fmt")
+import "os/exec"
+import "fmt"
 
 func main() {
 	cmd := exec.Command("ls", "-a", "-l")
diff --git a/064-spawn/spawn.sh b/061-spawning-processes/spawning-processes.sh
similarity index 53%
rename from 064-spawn/spawn.sh
rename to 061-spawning-processes/spawning-processes.sh
index 60cb89a..e0ca5ba 100644
--- a/064-spawn/spawn.sh
+++ b/061-spawning-processes/spawning-processes.sh
@@ -1,6 +1,6 @@
-$ go run spawn.go 
+$ go run spawning-processes.go 
 Files:
 total 8
 drwxr-xr-x    3 mmcgrana  staff   102 Sep 23 11:35 .
 drwxr-xr-x  101 mmcgrana  staff  3434 Sep 23 11:25 ..
--rw-r--r--@   1 mmcgrana  staff   241 Sep 23 11:37 spawn.go
+-rw-r--r--@   1 mmcgrana  staff   241 Sep 23 11:37 spawning-processes.go
diff --git a/065-exec/exec.go b/062-execing-processes/execing-processes.go
similarity index 83%
rename from 065-exec/exec.go
rename to 062-execing-processes/execing-processes.go
index 3cf232e..dd6c9d8 100644
--- a/065-exec/exec.go
+++ b/062-execing-processes/execing-processes.go
@@ -1,4 +1,4 @@
-// ## Exec
+// ## Exec'ing Processes
 
 package main
 
@@ -16,3 +16,5 @@ func main() {
 		panic(execErr)
 	}
 }
+
+// todo: note lack of fork
diff --git a/062-signals/signals.go b/063-signals/signals.go
similarity index 91%
rename from 062-signals/signals.go
rename to 063-signals/signals.go
index 4351601..168d8b4 100644
--- a/062-signals/signals.go
+++ b/063-signals/signals.go
@@ -18,3 +18,5 @@ func main() {
 	fmt.Println("Awaiting signal")
 	<- d
 }
+
+// todo: sending signals?
diff --git a/062-signals/signals.sh b/063-signals/signals.sh
similarity index 100%
rename from 062-signals/signals.sh
rename to 063-signals/signals.sh
diff --git a/063-exit/exit.go b/064-exit/exit.go
similarity index 100%
rename from 063-exit/exit.go
rename to 064-exit/exit.go
diff --git a/063-exit/exit.sh b/064-exit/exit.sh
similarity index 100%
rename from 063-exit/exit.sh
rename to 064-exit/exit.sh
diff --git a/066-reading-input/reading-input.go b/065-reading-input/reading-input.go
similarity index 100%
rename from 066-reading-input/reading-input.go
rename to 065-reading-input/reading-input.go
diff --git a/066-reading-input/reading-input.sh b/065-reading-input/reading-input.sh
similarity index 100%
rename from 066-reading-input/reading-input.sh
rename to 065-reading-input/reading-input.sh
diff --git a/068-line-filter/line-filter.go b/066-line-filter/line-filter.go
similarity index 100%
rename from 068-line-filter/line-filter.go
rename to 066-line-filter/line-filter.go
diff --git a/068-line-filter/line-filter.sh b/066-line-filter/line-filter.sh
similarity index 100%
rename from 068-line-filter/line-filter.sh
rename to 066-line-filter/line-filter.sh
diff --git a/067-users/users.go b/067-users/users.go
deleted file mode 100644
index 7d71d29..0000000
--- a/067-users/users.go
+++ /dev/null
@@ -1,11 +0,0 @@
-package main
-
-import "fmt"
-import "os/user"
-
-func main() {
-    me, _ := user.Current()
-    fmt.Println(me)
-    root, _ := user.Lookup("root")
-    fmt.Println(root)
-}
diff --git a/067-users/users.sh b/067-users/users.sh
deleted file mode 100644
index 4a0183e..0000000
--- a/067-users/users.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-$ go run users.go 
-&{501 20 mmcgrana Mark McGranaghan /Users/mmcgrana}
-&{0 0 root System Administrator /var/root}
diff --git a/070-tcp-client/tcp-client.go b/068-tcp-client/tcp-client.go
similarity index 100%
rename from 070-tcp-client/tcp-client.go
rename to 068-tcp-client/tcp-client.go
diff --git a/070-tcp-client/tcp-client.sh b/068-tcp-client/tcp-client.sh
similarity index 100%
rename from 070-tcp-client/tcp-client.sh
rename to 068-tcp-client/tcp-client.sh
diff --git a/071-http-client/http-client.go b/069-http-client/http-client.go
similarity index 100%
rename from 071-http-client/http-client.go
rename to 069-http-client/http-client.go
diff --git a/072-http-client-basic/http-client-basic.go b/070-http-client-basic/http-client-basic.go
similarity index 100%
rename from 072-http-client-basic/http-client-basic.go
rename to 070-http-client-basic/http-client-basic.go
diff --git a/073-https-client/https-client.go b/071-https-client/https-client.go
similarity index 100%
rename from 073-https-client/https-client.go
rename to 071-https-client/https-client.go
diff --git a/074-redis/redis.go b/072-redis/redis.go
similarity index 100%
rename from 074-redis/redis.go
rename to 072-redis/redis.go
diff --git a/074-redis/redis.sh b/072-redis/redis.sh
similarity index 100%
rename from 074-redis/redis.sh
rename to 072-redis/redis.sh
diff --git a/075-postgres/postgres.go b/073-postgres/postgres.go
similarity index 100%
rename from 075-postgres/postgres.go
rename to 073-postgres/postgres.go
diff --git a/075-postgres/postgres.sh b/073-postgres/postgres.sh
similarity index 100%
rename from 075-postgres/postgres.sh
rename to 073-postgres/postgres.sh
diff --git a/076-sending-email/sending-email.go b/074-sending-email/sending-email.go
similarity index 100%
rename from 076-sending-email/sending-email.go
rename to 074-sending-email/sending-email.go
diff --git a/077-http-server-basic/http-server-basic.go b/075-http-server-basic/http-server-basic.go
similarity index 100%
rename from 077-http-server-basic/http-server-basic.go
rename to 075-http-server-basic/http-server-basic.go
diff --git a/078-http-server-canonical-host/http-server-canonical-host.go b/076-http-server-canonical-host/http-server-canonical-host.go
similarity index 100%
rename from 078-http-server-canonical-host/http-server-canonical-host.go
rename to 076-http-server-canonical-host/http-server-canonical-host.go
diff --git a/078-http-server-canonical-host/http-server-canonical-host.sh b/076-http-server-canonical-host/http-server-canonical-host.sh
similarity index 100%
rename from 078-http-server-canonical-host/http-server-canonical-host.sh
rename to 076-http-server-canonical-host/http-server-canonical-host.sh
diff --git a/079-http-server-graceful-shutdown/http-server-graceful-shutdown.go b/077-http-server-graceful-shutdown/http-server-graceful-shutdown.go
similarity index 100%
rename from 079-http-server-graceful-shutdown/http-server-graceful-shutdown.go
rename to 077-http-server-graceful-shutdown/http-server-graceful-shutdown.go
diff --git a/079-http-server-graceful-shutdown/http-server-graceful-shutdown.sh b/077-http-server-graceful-shutdown/http-server-graceful-shutdown.sh
similarity index 100%
rename from 079-http-server-graceful-shutdown/http-server-graceful-shutdown.sh
rename to 077-http-server-graceful-shutdown/http-server-graceful-shutdown.sh
diff --git a/080-http-server-log/http-server-log.go b/078-http-server-log/http-server-log.go
similarity index 100%
rename from 080-http-server-log/http-server-log.go
rename to 078-http-server-log/http-server-log.go
diff --git a/081-http-server-middleware/http-server-middleware.go b/079-http-server-middleware/http-server-middleware.go
similarity index 100%
rename from 081-http-server-middleware/http-server-middleware.go
rename to 079-http-server-middleware/http-server-middleware.go
diff --git a/082-http-server-routing/http-server-routing.go b/080-http-server-routing/http-server-routing.go
similarity index 100%
rename from 082-http-server-routing/http-server-routing.go
rename to 080-http-server-routing/http-server-routing.go
diff --git a/082-http-server-routing/http-server-routing.sh b/080-http-server-routing/http-server-routing.sh
similarity index 100%
rename from 082-http-server-routing/http-server-routing.sh
rename to 080-http-server-routing/http-server-routing.sh
diff --git a/083-http-server-static-dynamic/http-server-static-dynamic.go b/081-http-server-static-dynamic/http-server-static-dynamic.go
similarity index 100%
rename from 083-http-server-static-dynamic/http-server-static-dynamic.go
rename to 081-http-server-static-dynamic/http-server-static-dynamic.go
diff --git a/083-http-server-static-dynamic/http-server-static-dynamic.sh b/081-http-server-static-dynamic/http-server-static-dynamic.sh
similarity index 100%
rename from 083-http-server-static-dynamic/http-server-static-dynamic.sh
rename to 081-http-server-static-dynamic/http-server-static-dynamic.sh
diff --git a/084-http-server-static-select/http-server-static-select.go b/082-http-server-static-select/http-server-static-select.go
similarity index 100%
rename from 084-http-server-static-select/http-server-static-select.go
rename to 082-http-server-static-select/http-server-static-select.go
diff --git a/084-http-server-static-select/http-server-static-select.sh b/082-http-server-static-select/http-server-static-select.sh
similarity index 100%
rename from 084-http-server-static-select/http-server-static-select.sh
rename to 082-http-server-static-select/http-server-static-select.sh
diff --git a/085-http-server-static/http-server-static.go b/083-http-server-static/http-server-static.go
similarity index 100%
rename from 085-http-server-static/http-server-static.go
rename to 083-http-server-static/http-server-static.go
diff --git a/085-http-server-static/http-server-static.sh b/083-http-server-static/http-server-static.sh
similarity index 100%
rename from 085-http-server-static/http-server-static.sh
rename to 083-http-server-static/http-server-static.sh
diff --git a/086-http-server-status-code/http-server-status-code.go b/084-http-server-status-code/http-server-status-code.go
similarity index 100%
rename from 086-http-server-status-code/http-server-status-code.go
rename to 084-http-server-status-code/http-server-status-code.go
diff --git a/086-http-server-status-code/http-server-status-code.sh b/084-http-server-status-code/http-server-status-code.sh
similarity index 100%
rename from 086-http-server-status-code/http-server-status-code.sh
rename to 084-http-server-status-code/http-server-status-code.sh
diff --git a/087-http-server/http-server.go b/085-http-server/http-server.go
similarity index 100%
rename from 087-http-server/http-server.go
rename to 085-http-server/http-server.go
diff --git a/088-https-server/https-server.go b/086-https-server/https-server.go
similarity index 100%
rename from 088-https-server/https-server.go
rename to 086-https-server/https-server.go
diff --git a/088-https-server/https-server.sh b/086-https-server/https-server.sh
similarity index 100%
rename from 088-https-server/https-server.sh
rename to 086-https-server/https-server.sh
diff --git a/tool/index.txt b/tool/index.txt
index 5214a1e..b041c23 100644
--- a/tool/index.txt
+++ b/tool/index.txt
@@ -70,18 +70,17 @@ sha1-hashes
 ~ base64-encoding
 
 # systems programming
-file-open
-file-read
-file-write
+reading-files
+writing-files
+~ standard-streams
 command-line-arguments
 command-line-flags
-env
+environment-variables
+spawning-processes
+execing-processes
 signals
 exit
-spawn
-exec
 reading-input
-users
 line-filter
 tcp server