- #!/bin/bash
- set -euo pipefail
- IFS=$'\n\t'
- # Create symlink after backing up the target.
- usage="Usage: ${0##*/} source_file target_file"
- src=${1:?$usage}
- tgt=${2:?$usage}
- backup=~/.backup
- [[ ! -d $backup ]] && mkdir $backup
- [[ -e "$tgt" ]] && mv "$tgt" "$backup/${tgt##*/}-$(date '+%Y-%m-%d-%H%M%S')" || true
- ln -sf "$src" "$tgt"
|
