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Awesome Bash Commands

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

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

Users and Groups

Add an existing user to existing group

usermod -a -G ftp john

Network

Show current IP address

ifconfig | awk '/<UP,BROADCAST,RUNNING,MULTICAST>/ { getline; print $2 }'
# or
ifconfig | grep -E "([0-9]{1,3}\.){3}[0-9]{1,3}" | grep -v 127.0.0.1 | awk '{ print $2 }' | cut -f2 -d: | head -n1

Miscellaneous

Generate 1 million of unique random phone numbers

This command generate one million of unique random phone numbers (random permutations) fast using GNU/Linux shuf command. Use sed command for customize each number format. For example for add some prefix or suffix. Remember shuf is not limited to numbers only.

shuf -i 100000000-999999999 -n 1000000 | sed -e 's/^/51/' > gsm.txt

Other Awesome Lists

Contributions

Please check out the contribution file.

License

To the extent possible under law, José Luis Quintana has waived all copyright and related or neighboring rights to this work.

lisah2u / awesome-bash-commands