plural

058-line-filters/line-filters.go

@@ -1,4 +1,4 @@
-// ## Line Filter
+// ## Line Filters
 
 // A line filter program reads input on stdin,
 // processes it, and prints results to stdout.

058-line-filters/line-filters.sh

@@ -3,6 +3,6 @@ $ echo 'hello'   > lines
 $ echo 'filter' >> lines
 
 # Use the line filter to get uppercase lines.
-$ cat lines | go run line-filter.go
+$ cat lines | go run line-filters.go
 HELLO
 FILTER

tool/index.txt

@@ -73,7 +73,7 @@ base64-encoding ~
 reading-files
 writing-files
 standard-streams ~
-line-filter
+line-filters
 command-line-arguments
 command-line-flags
 environment-variables