Bash

bash 是一个 shell 环境

PS1

# for user
PS1='\[\e[94m\][\A] \[\e[93m\][\u\[\e[96m\]@\h\[\e[36m\]] \[\e[35m\][\[\e[95m\]$(ip route get 1.1.1.1 | awk -F"src " '"'"'NR == 1{  split($2, a," ");print a[1]}'"'"')\[\e[35m\]] \[\e[33m\][\w]\n\[\e[90m\]$? \[\e[32m\][ \$ > \[\e[93m\]'

# for root
PS1='\[\e[94m\][\A] \[\e[93m\][\u\[\e[96m\]@\h\[\e[36m\]] \[\e[35m\][\[\e[95m\]$(ip route get 1.1.1.1 | awk -F"src " '"'"'NR == 1{ split($2, a," ");print a[1]}'"'"')\[\e[35m\]] \[\e[33m\][\w]\n\[\e[90m\]$? \[\e[31m\][ \$ > \[\e[93m\]'

rand pass generator

echo $(tr -dc 'A-Za-z0-9!@#$%*' < /dev/urandom | head -c 16)

getopt

OPTIONS_temp=$(getopt -o vhcpf: --long verbose,help,cron,plain,file: -- $1 )
if [ $? -ne 0 ]; then
    echo "Failed to parse options."
    exit 1
fi
eval set -- "$OPTIONS_temp"
while true; do
    case "$1" in
        -v | --verbose)
            VERBOSE=1
            shift
            ;;
        -h | --help)
            HELP=1
            shift
            ;;
        -p | --plain)
            no_colour=true
            shift
            ;;
        -c | --cron)
            cron=true
            shift
            ;;
        -f | --file)
            FILE=$1
            shift 2
            ;;
        --)
            shift
            break
            ;;
        *)
            break
            ;;
    esac
done