Monday, August 27, 2018

Awesome Bash Command

Awesome Bash Command


Awesome Bash Commands 

A curated list of awesome Bash useful commands. Inspired by awesome-shell and bash-handbook.

Table of Contents

  • Files and directories
  • Paths
  • Devices
  • Users and Groups
  • Network
  • Miscellaneous
  • Other Awesome Lists

Files and directories

List files sorted by extension

$ ls -l -X
# Or
$ ls -l --sort=extension

Create a symbolic link for one directory or file

ln -s /var/www/html ~/www
ln -s ~/my/large/path/file.txt ~/myfile.txt

Create one empty file in current directory and subdirectories

find ./my/current/directory -type d -exec touch {}/.gitignore ;

Delete one specific file of current directory and subdirectories

find ./my/current/directory -name ".gitignore" -type f -delete

Copy file content to clipboard

Copy shell command output to cilpboard
$ cat myfile.txt | xclip -selection c

Copy entire directory to destination

$ cp -avr /my/current/directory /destination/directory
# Or
$ rsync -av /my/current/directory /destination/directory

Show the space usage of file or directory

Show the space usage of file or directory (recursive) in human readable format.
du -sh /var/log/dnf.librepo.log
# 4,1M /var/log/dnf.librepo.log

du -sh /var/log
# 2,2G /var/log

Delete all files in directory by pattern

find /usr/local/apache/logs/archive/ -name *2017.gz -delete

Move files by pattern

This command move all *.js files into *.ts files (move equivalent)
find src/ -type f -name "*.js" -exec bash -c mv {} `echo {} | sed -e "s/.js/.ts/g"` ;

Paths

Show the full path of (shell) commands

which bash
# /usr/bin/bash

which git node
# /usr/bin/git
# /usr/bin/node

Show the resolved path of symbolic link

realpath ~/www
# /usr/share/nginx/html

Determine the current directory

pwd
# /home/my/current/directory

Devices

Display file system disk space usage

Show the file system disk space usage in human readable format.
df -h
# Filesystem Size Used Avail Use% Mounted on
# devtmpfs 487M 0 487M 0% /dev
# tmpfs 497M 0 497M 0% /dev/shm
# tmpfs 497M 508K 496M 1% /run
# tmpfs 497M 0 497M 0% /sys/fs/cgroup
# /dev/vda1 30G 2.7G 26G 10% /
# tmpfs 100M 0 100M 0% /run/user/0

Mount a FAT32 USB device

$ mount -t vfat /dev/sdb1 /media/usb

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