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#! /bin/sh echo "Current command is $0" echo "The first parameter is $1" echo "The second parameter is $2" echo "The third parameter is $3" echo "Total of parameters if $#" echo "Current PID is $$" #!/bin/bash times=0 until [ "$times" = 3 ]; do echo "I love linux." sleep 2 times=`expr $times + 1` done #!/bin/bash # menu shell script. samli 2004.4.19 until echo "List Directory..........1" echo "Change Directory........2" echo "Edit File...............3" echo "Remove File.............4" echo "Exit Menu...............5" read choice test $choice = 5 do case $choice in 1) ls;; 2) echo "enter target directory:" read dir cd $dir ;; 3) echo "enter file name:" read file vi $file ;; 4) echo "enter file name:" read file rm $file ;; 5) echo "Goodbye" ;; *) echo "illegal option, please input again." esac done #! /bin/sh var1="abcd efg" echo $var1 var2=1234 echo "The value of var2 is $var2" echo $HOME echo $PATH echo $PWD #! /bin/sh num=0 while [ $num -le 10 ] do num=`expr $num + 1` if [ $num -eq 5 ] then continue fi square=`expr $num \* $num` echo $square done #!/bin/bash # Gnu bash versions 2.x # The Party Program--Invitations to friends from the # "guest" file guestfile=./guests # ~/shell/guests if [[ ! -e "$guestfile" ]] then printf "${guestfile##*/} non-existent" exit 1 fi export PLACE="Sarotini's" (( Time=$(date +%H) + 1 )) set cheese crackers shrimp drinks "hot dogs" sandwiches for person in $(cat $guestfile) do if [[ $person = root ]] then continue else # Start of here document mail -v -s "Party" $person Hi ${person}! Please join me at $PLACE for a party! Meet me at $Time o'clock. I'll bring the ice cream. Would you please bring $1 and anything else you would like to eat? Let me kn...