.bashrc setting for ubuntu 14.04

.bashrc

alias v='vim '
alias sudo='sudo '
alias p='python3.5 '
alias gsq='gnome-session-quit'
alias :q='exit'


psg() {
    ps -ef | grep $1
}

pspid() {
    ps -ef | grep $1 | grep -v grep | awk '{printf "%s\t", $2; for (i=8; i<=NF; i++) printf " %s", $i; printf "\n"}' | grep $1
}

lsg() {
    if (( $# == 1 ))
    then
        ls | grep $1
    elif (( $# == 2)) 
    then
        ls $1 | grep $2
    else
        echo 'lsg: should have 1 or 2 arguments.'
    fi  
}

cla() {
    clang++ -std=c++11 -g a.cpp && ./a.out
}

cl() {
    clang++ -std=c++11 $* && ./a.out
}

k9() {
    kill -9 $*
}

kall() {
    ps aux | grep $1 | grep -v grep | awk '{print $2}' | xargs kill -9
}

gdif () {
    if [ "$#" -ne 1 ]; then
        printf "Usage: gdif <commit_hash>\n"
        return 1
    fi  

    git diff $1~ $1
}