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1, if...else.. if[]; then else fi2, if...else if... if[]; then esif[]; then else fi3, if... if[]; then fi

touch exeSendMail.kshtouch eg.txt1, eg.txt content: hello world!2, write in exeSendMail.kshSend mail( echo "From: SANT"; echo "To: bonnie.tang@gmail.com"; ...

Variable: define and usage: difference between $NAME and ${NAME}1, Define: NAME="Zara Ali"2, Use: Input below in test.ksh NAME="Zara Ali" AGE=13 echo $NAME $ Zara Ali #use ${...

Difference between ${} and $() 1, $(command) is “command substitution”. it runs the command, captures its output, and inserts that into the command line that contains the $(…); eg: $ ls -ld ...

special variable:$#, $$, $@, $*, $0, $?[b]1, $#[/b][b]The number of arguments supplied to a script.[/b]eg: if [ "$#" -eq 0 ]; then echo "you did not pass any parameter"fiecho "Total...