bash_aliases

#Use tshark to capture HTTP traffic on port 80, filter only GET requests.
alias capture_http_get="tshark 'tcp port 80 and (((ip[2:2] - ((ip[0]&0xf)<<2)) - ((tcp[12]&0xf0)>>2)) != 0)' -R 'http.request.method == "GET" || http.request.method == "HEAD"'"

#Output time intervals after ping command has finished
alias ping="time ping"

#make the ls (list directory) content a little prettier
alias ls="ls --color=auto"
alias ll="ls -lhA --color=auto"

#prettify the grep output
alias grep="grep --color=auto"
alias egrep="egrep --color=auto"
alias fgrep="fgrep --color=auto"

alias cd..="cd .."
alias ..='cd ..'
alias ...='cd ../../../'
alias ....='cd ../../../../'
alias .....='cd ../../../../'

#display disk usage.
alias df="df -Tha --total"

#Display ram/swap usage
alias free="free -mt"

#shortcut for downloading files using wget
alias wget="wget -c"

#retrieve my IP address, using ipecho.net
alias getMyIp="curl http://ipecho.net/plain; echo"

#Output an easily readable output over active ports, using netstat command.
alias ports="netstat -tulanp"

#Check if GZIP is supported, using Curl
alias hasGzip="curl -I --compress"

#Get webserver headers using Curl
alias getHeaders="curl -I"

#create given directory and enter it.
mcd () {
    mkdir -p $1
    cd $1
}

diff() {
    if command -v colordiff >/dev/null; then
	colordiff "$@"
    else
	diff "$@"
    fi
}

function extract {
 if [ -z "$1" ]; then
    # display usage if no parameters given
    echo "Usage: extract <path/file_name>.<zip|rar|bz2|gz|tar|tbz2|tgz|Z|7z|xz|ex|tar.bz2|tar.gz|tar.xz>"
 else
    if [ -f $1 ] ; then
        # NAME=${1%.*}
        # mkdir $NAME && cd $NAME
        case $1 in
          *.tar.bz2)   tar xvjf ../$1    ;;
          *.tar.gz)    tar xvzf ../$1    ;;
          *.tar.xz)    tar xvJf ../$1    ;;
          *.lzma)      unlzma ../$1      ;;
          *.bz2)       bunzip2 ../$1     ;;
          *.rar)       unrar x -ad ../$1 ;;
          *.gz)        gunzip ../$1      ;;
          *.tar)       tar xvf ../$1     ;;
          *.tbz2)      tar xvjf ../$1    ;;
          *.tgz)       tar xvzf ../$1    ;;
          *.zip)       unzip ../$1       ;;
          *.Z)         uncompress ../$1  ;;
          *.7z)        7z x ../$1        ;;
          *.xz)        unxz ../$1        ;;
          *.exe)       cabextract ../$1  ;;
          *)           echo "extract: '$1' - unknown archive method" ;;
        esac
    else
        echo "$1 - file does not exist"
    fi
fi
}