50 lines
1 KiB
Bash
Executable file
50 lines
1 KiB
Bash
Executable file
#!/bin/sh
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fname="$(basename "$0")"
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usage()
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{
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echo "$fname [options] [path...]
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Display latest date of modification of any item in the path
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Options:
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-v Invert, display oldest instead
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-s Format to UNIX epoch
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-F <format> Use the following date format. See 'man date'
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"
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}
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unset opt_s opt_v date_format
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while getopts ":hsvF:" opt;
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do
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case $opt in
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h) usage ; exit 0 ;;
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s) opt_s=y ;;
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v) opt_v=y ;;
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F) date_format=$OPTARG ;;
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*) echo "Unknown option: $OPTARG" >&2 ; usage ; exit 1 ;;
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esac
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done
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shift $((OPTIND-1))
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targets="."
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[ $# -gt 0 ] && targets="$*"
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if [ -n "$opt_v" ] ; then
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ret=$(find $targets -printf '%T@\n' | sort -n | head -n1 | cut -d'.' -f1)
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else
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ret=$(find $targets -printf '%T@\n' | sort -n | tail -n1 | cut -d'.' -f1)
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fi
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if [ -n "$opt_s" ]
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then
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true # do nothing: already in seconds
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elif [ -n "$date_format" ] ; then
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ret=$(date --date="$date_format" 2>/dev/null)
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else # resolve to default date
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ret=$(date --date="@$ret" 2>/dev/null)
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fi
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[ -n "$ret" ] && echo $ret
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