108 lines
2.6 KiB
Bash
Executable File
108 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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set -e
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function _help() {
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echo '
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Usage: file-age {file} [units]
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Checks file modification date, and the current time. Prints the age of
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the file in [units].
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[units] is one of S, M, H, d, w, m, y, full, human
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seconds is the default. All values floored.
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month = 30 days
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year = 365 days
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full = YY-MM-DD hh:mm:ss
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human = 3 months 2 days
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'
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exit
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}
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for (( i=1; i<=$#; i++ ))
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do [[ "${!i}" = "-h" ]] && _help
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done
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function _human {
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file_date=( $( date -r "$STATFILE" +"%Y %m %d %H %M %S" ) )
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current_date=( $( date +"%Y %m %d %H %M %S" ) )
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local values=()
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for (( i=0; $i<${#file_date[@]}; i++ )); do
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values+=( $(( ${current_date[$i]#0} - ${file_date[$i]#0})) )
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done
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if [[ ${values[5]} -lt 0 ]]; then
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values[5]=$(( 60 + ${values[5]} )); values[4]=$(( ${values[4]} -1 ))
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fi
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if [[ ${values[4]} -lt 0 ]]; then
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values[4]=$(( 60 + ${values[4]} )); values[3]=$(( ${values[3]} -1 ))
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fi
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if [[ ${values[3]} -lt 0 ]]; then
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values[3]=$(( 24 + ${values[3]} )); values[2]=$(( ${values[2]} -1 ))
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fi
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if [[ ${values[2]} -lt 0 ]]; then
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case ${file_date[1]#0} in
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1|3|5|7|8|10|12) mlen=31;;
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2) mlen=28;;
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*) mlen=30;;
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esac
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values[2]=$(( $mlen + ${values[2]} ));
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values[1]=$(( ${values[1]} -1 ))
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fi
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if [[ ${values[1]} -lt 0 ]]; then
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values[1]=$(( 12 + ${values[1]} )); values[0]=$(( ${values[0]} -1 ))
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fi
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if [[ "$1" = "full" ]]; then
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printf '%02d-%02d-%02d %02d:%02d:%02d\n' ${values[@]}
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return
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fi
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local units=( yr mo day hr min sec )
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if [[ "${file_date[@]}" = "${current_date[@]}" ]]; then
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printf " 0 sec\n"; return
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fi
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for (( i=0; $i<${#values[@]}; i++ )); do
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if [[ ${values[$i]} -gt 0 ]]; then
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j=$(( i + 1 ))
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printf "%2s %-3s" ${values[$i]} ${units[$i]}
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if [[ $j -lt ${#values[@]} ]]; then
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printf " %2s %-3s" ${values[$j]} ${units[$j]}
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break
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fi
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fi
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done
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printf "\n"
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}
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STATFILE="$1"
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[[ -z "$STATFILE" ]] && _help
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test -e "$STATFILE" || { echo File "$STATFILE" does not exist >&2; exit 1; }
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UNITS=${2:-S}
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case $OSTYPE in
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darwin*) created=$( stat -f %c -t %s "$STATFILE" ) ;;
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*) created=$( stat -c %Y "$STATFILE" ) ;;
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esac
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now=$( date +%s )
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age=$(( $now - $created ))
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case $UNITS in
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S)
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echo $age ;;
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M)
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echo $(( $age / 60 )) ;;
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H)
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echo $(( $age / 3600 )) ;;
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d)
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echo $(( $age / 86400 )) ;;
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w)
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echo $(( $age / 604800 )) ;;
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m)
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echo $(( $age / 2592000 )) ;;
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y)
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echo $(( $age / 31536000 )) ;;
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full)
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_human full;;
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human)
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_human;;
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*)
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echo Unit $UNITS not recognized.
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_help ;;
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esac
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