Quickly Tag Complex Linux Commands for Instant Recall

Tagging Linux Commands

Linux commands can become long and hard to remember; adding a short tag at the end lets you recall the command later by typing the tag instead of the full command line.

find . -size +10M -type f -print0 | xargs -0 ls -Ssh | sort -z #ListFilesBiggerThanXSize

Note that the tag must start with # and be separated from the command by a space.

To run the tagged command, use the !? operator followed by the tag:

[alvin@VM_0_16_centos ~]$ !? #ListFilesBiggerThanXSize
find . -size +10M -type f -print0 | xargs -0 ls -Ssh | sort -z #ListFilesBiggerThanXSize

Another Method: Using alias

You can achieve the same effect by creating a shell alias that stores the long command under a short name.

alias ListFilesBiggerThanXSize='find . -size +10M -type f -print0 | xargs -0 ls -Ssh | sort -z'

Invoke the command simply by typing the alias name: ListFilesBiggerThanXSize Both techniques let you avoid re‑typing complex commands and improve productivity on the Linux command line.