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Diffstat (limited to 'src/clock')
-rwxr-xr-x | src/clock | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/clock b/src/clock new file mode 100755 index 0000000..250c028 --- /dev/null +++ b/src/clock @@ -0,0 +1,33 @@ +#!/bin/sh +set -eu + +usage() { + cat <<-'EOF' + Usage: + clock [-o FILE] [--] CMD... + EOF +} + +OUTPUT=/dev/stdout +while getopts 'o:' flag; do + case "$flag" in + (o) + OUTPUT="$OPTARG" + ;; + (*) + usage >&2 + exit 2 + ;; + esac +done +shift $((OPTIND - 1)) + + +STATUS_F="$(mkstemp)" +trap 'rm -f "$STATUS_F"' EXIT + +START="$(now -E)" +statusf "$STATUS_F" "$@" +END="$(now -E)" +printf '%s %s' "$END" "$START" | awk '{ printf "%f\n", $1 - $2 }' > "$OUTPUT" +exit "$(cat "$STATUS_F")" |