config

commit 8f59a571231a02d1e9e0b44d44384cfb17d379f0
parent db862493b60ae85808d2e477ce953db1c4c47eeb
Author: Jacob R. Edwards <jacobouno@protonmail.com>
Date:   Thu, 10 Sep 2020 10:40:26 -0700

Simplify and reformat

usage message shortened to just a synopsys.

h option removed.

more verbosity on invalid arguments.

options sorted alphabeticaly.

Diffstat:
M
scripts/.local/bin/now
 | 
23
++++++++---------------

1 file changed, 8 insertions(+), 15 deletions(-)
diff --git a/scripts/.local/bin/now b/scripts/.local/bin/now
@@ -1,26 +1,19 @@
 #!/usr/bin/env dash
-# print the current date, time, or both.
+# display the date, time, or both
 
 set -eu
 
-# date and time formats
+# strftime(3):
 date="%Y%m%d"
 time="%H%M%S"
 
-# display usage
-usage()
-{
-	echo "usage, `basename $0` [-fdt]"
-	echo "\t-f, display date and time"
-	echo "\t-d, display date"
-	echo "\t-t, display time"
-	echo "\t-h, display help and exit"
-}
+usage() { echo "usage: `basename $0` [-dft]" ;}
+err() { echo "`basename $0`: $@" 1>&2 ;}
 
-case ${1:-"-f"} in
-	-f) date +$date-$time;;
+case "${1:-"-f"}"
+in
 	-d) date +$date;;
+	-f) date +$date-$time;;
 	-t) date +$time;;
-	-h) usage; exit;;
-	*) echo "error: invalid argument" 1>&2; return 1;;
+	*) err "'$1': unknown option."; usage; exit 1;;
 esac