Shell/ifthen.sh at master · Vayne-Lover/Shell · GitHub

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#!/bin/bash
#if pwd
#then
#echo "pwd worked."
#elif ls -al
#then
#echo "ls worked."
#else
#echo "All doesn't work."
#fi
#if [ -d ~/Desktop/CS/Shell ]
#then
#    echo "Not null."
#    cd ~/Desktop/CS/Shell
#    ls
#else
#    echo "Null."
#fi
#if [ -e ~/Desktop/CS/Shell/ifthen.sh ]
#then
#    echo "Have it."
#else
#    echo "Don't have."
#fi
#if [ -r ~/Desktop/CS/Shell/ifthen.sh ] && [ -d ~/Desktop/CS/Shell ]
#then
#    echo "Can read it."
#else
#    echo "Can't read it."
#fi
#a=10
#if (( $a**100 ))
#then
#    echo ">"
#elif (( $a**2==100 ))
#then
#    echo "="
#else
#    echo "<"
#fi
#if [[ "ssda"==s* ]]
#then
#    echo "Hi."
#else
#    echo "Bye."
#fi
a="Vayne"
case $a in
Vayne | dasd)
    echo "Welcome.";;
BB)
    echo "BB.";;
*)
    echo "Sorry.";;
esac