If you want to find corrupted image files using command line. FEH: feh -ur /opt/images jpeginfo find . -name "*jpg" -exec jpeginfo -c {} \; | grep -E "WARNING|ERROR" exiftool find . -iname '*jpg' -print0 | xargs -0 exiftool -warning; find . -iname '*jpg' -print0 | xargs -0 jpeginfo -c

Measure the internet connection speed from the command line performing a speed test with the speedtest.net python client. #!/bin/bash cd /tmp wget -O speedtest-cli https://raw.github.com/sivel/speedtest-cli/master/speedtest_cli.py chmod +x speedtest-cli /tmp/speedtest-cli rm /tmp/speedtest-cli

If You want to enable color output for git try : ...

The simplest solution is to run chsh. Example: chsh -s /path/to/shell/binary username The command above will not work (chsh: /path/to/shell/binary: non-standard shell) if the shell You are trying to set is NOT listed in /etc/shells There are other ways of setting the default shell, more can be found here If you want to check which shell are You using type: ps -p $$

The bash tricks list: Quick cd to previous directory cd - Set the default text editor echo ‘export EDITOR=“vim”’ >> ~/.bashrc Change the default history size (number of commands that are saved) echo “HISTSIZE=2000” >> ~/.bash_profile echo “HISTFILESIZE=2000” >> ~/.bash_profile Find and run a command from history history | grep search_keyword !n #where n is the command number or you can use CTRL-r ...