Improve commenting/exit handling in binscripts

1 files changed, 5 insertions, 0 deletions

diff --git a/bin/clrd b/bin/clrd
index 0e41d2db..0b460671 100755
--- a/bin/clrd
+++ b/bin/clrd
@@ -1,5 +1,8 @@
 #!/bin/sh
+# Clear the screen and read a file as it's written line-by-line
 self=clrd
+
+# Check we have an input file and are writing to a terminal
 if [ "$#" -ne 1 ] ; then
     printf >&2 '%s: Need input file\n' "$self"
     exit 2
@@ -7,5 +10,7 @@ elif ! [ -t 1 ] ; then
     printf >&2 '%s: stdout not a terminal\n' "$self"
     exit 2
 fi
+
+# Clear the screen and start tailing out the file
 clear
 tail -f -- "$@"