index work

056-file-open/file-open.go

@@ -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")
-}

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

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

060-environment-variables/environment-variables.go

@@ -1,4 +1,4 @@
-// ## Env
+// ## Environment Variables
 
 package main                           
 

060-environment-variables/environment-variables.sh

@@ -0,0 +1,6 @@
+$ go run environment-variables.go
+HOME
+PATH
+PWD
+...
+bar

061-env/env.sh

@@ -1,6 +0,0 @@
-$ go run env.go
-HOME
-PATH
-PWD
-...
-bar

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")

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

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

063-signals/signals.go

@@ -18,3 +18,5 @@ func main() {
 	fmt.Println("Awaiting signal")
 	<- d
 }
+
+// todo: sending signals?

067-users/users.go

@@ -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)
-}

067-users/users.sh

@@ -1,3 +0,0 @@
-$ go run users.go 
-&{501 20 mmcgrana Mark McGranaghan /Users/mmcgrana}
-&{0 0 root System Administrator /var/root}

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