#!/bin/bash
-#
-# inspired by https://stackoverflow.com/questions/8523159/how-do-i-move-a-relative-symbolic-link#8523293
-# by Christopher Neylan
+# Desc: Moves sybolic link
+# Usage: bkmvln
+# Input: arg1: path of existing symbolic link
+# arg2: path where link should be moved
+# Output: None
+# Depends: gnucoreutils 8.30
+# Ref/Attrib:
+# 1. Christopher Neylan. https://stackoverflow.com/questions/8523159/how-do-i-move-a-relative-symbolic-link#8523293
+# 2. Tomáš Pospíšek. https://stackoverflow.com/a/30508868
help() {
echo 'usage: mv_ln src_ln dest_dir'
exit 1
}
+# Show help if `--help` flag given, if arg1 isn't a symbolic link, or
+# if arg2 isn't a directory.
[ "$1" == "--help" ] || [ ! -L "$1" ] || [ ! -d "$2" ] && help
set -e # exit on error