kind of human readable for file-age

files/file-age

@@ -1,16 +1,17 @@
 #!/bin/bash
 
-_help() {
+function _help() {
   echo '
 Usage: file-age {file} [units]
 
   Checks file modification date, and the current time. Prints the age of
   the file in [units].
 
-  [units] is one of S,M,H,d,w,m,y
+  [units] is one of S, M, H, d, w, m, y, human
           seconds is the default. All values floored.
           month = 30 days
           year = 365 days
+          human = YY-MM-DD hh:mm:ss
 '
 exit
 }
@@ -18,6 +19,17 @@ for (( i=1; i<=$#; i++ ))
 do  [[ "${!i}" = "-h" ]] && _help
 done
 
+function _human {
+  local T=$1
+  local Y=$((T/60/60/24/365))
+  local m=$((T/60/60/24/30%12))
+  local D=$((T/60/60/24%30))
+  local H=$((T/60/60%24))
+  local M=$((T/60%60))
+  local S=$((T%60))
+  printf '%02d-%02d-%02d %02d:%02d:%02d\n' $Y $m $D $H $M $S
+}
+
 STATFILE="$1"
 [[ -z "$STATFILE" ]] && _help
 test -e "$STATFILE" || { echo File "$STATFILE" does not exist >&2; exit 1; }
@@ -45,6 +57,8 @@ case $UNITS in
     echo $(( $age / 2592000 ));;
   y)
     echo $(( $age / 31536000 ));;
+  human)
+    _human "$age";;
   *)
     echo Unit $UNITS not recognized.
     _help;;