Helpful Linux Bash Aliases

# Prompt
PS1="\n\u@\h:\w\n# "

alias df='df -h'
alias du='du -h'

## Colorize the ls output ##
alias ls='ls -h --color=auto --group-directories-first'

## Use a long listing format ##
alias ll='ls -la'
alias l='ll'

## Show hidden files ##
alias l.='ls -dh .* --color=auto'
alias lt='ll -t'

## get rid of command not found ##
alias cd..='cd ..'

## a quick way to get out of current directory ##
alias ..='cd ..'
alias ...='cd ../../../'
alias ....='cd ../../../../'
alias .....='cd ../../../../'
alias .4='cd ../../../../'
alias .5='cd ../../../../..'

## Colorize the grep command output for ease of use (good for log files)##
alias grep='grep --color=auto'
alias egrep='egrep --color=auto'
alias fgrep='fgrep --color=auto'

# Start calculator with math support
alias bc='bc -l'

# Generate sha1 digest
alias sha1='openssl sha1'

# Create parent directories on demand
alias mkdir='mkdir -pv'

# Command short cuts to save time
alias h='history'
alias j='jobs -l'

# Create a new set of commands
alias path='echo -e ${PATH//:/\\n}'
alias now='date +"%T'
alias nowtime=now
alias nowdate='date +"%d-%m-%Y"'

# Set vim as default
alias svi='sudo vi'

# Stop after sending count ECHO_REQUEST packets #
alias ping='ping -c 5'
# Do not wait interval 1 second, go fast #
alias fastping='ping -c 100 -s.2'

# Show open ports
alias ports='netstat -tulanp'

# Resume wget by default
alias wget='wget -c'

# top is atop, just like vi is vim
alias top='atop'

# compression
alias tar='\tar -zcvf'
alias untar='\tar -zxvf'