diff options
Diffstat (limited to 'bin/fnl.sh')
-rw-r--r-- | bin/fnl.sh | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/bin/fnl.sh b/bin/fnl.sh new file mode 100644 index 00000000..e8a5f071 --- /dev/null +++ b/bin/fnl.sh @@ -0,0 +1,22 @@ +# Run a command and save its output and error to temporary files + +# Check we have at least one argument +if [ "$#" -eq 0 ] ; then + printf >&2 'fnl: Command needed\n' + exit 2 +fi + +# Create a temporary directory; note that we *don't* clean it up on exit +dir=$(mktd fnl) || exit + +# Run the command; keep its exit status; wrap the command in braces so that the +# out files are always opened even if the command is not found or otherwise +# can't be run; some BSD shells require this, I forget which ones +{ "$@" ; } >"$dir"/stdout 2>"$dir"/stderr +ret=$? + +# Run wc(1) on each of the files +wc -- "$dir"/* + +# Exit with the wrapped command's exit status +exit "$ret" |