Shell programming under Linux--startup script for the standard daemon

a standard daemon startup script:

#! /bin/shwhoami= ' WhoAmI ' pid= ' ps-u $WHOAMI | Gerp Mydaemond | awk ' {print $ ' if (test "=") Thenecho "Mydaemond [Start][stop][version]" Exit 0fiif (Test "=" status ") thenif (test "$PID" = "") Thenecho "not run" Elseecho "is Running" fiexit 0fiif (test "=" Start ") thenif (test" $PID "=" ") th  En./mydaemondfiexit 0fiif (Test "=" "Stop") thenif (test "$PID" = "") Thenkill $PIDfiexit 0fiif (test "$" = "version") Thenecho "version is V1.0" Exit 0fiecho "Mydaemond [Start][stop][version]"

######################################################################################First shell script

#! /bin/sha=5b=5echo a= $aecho b= $bif (test "$a" = "$b") then        echo A=belse        echo A!=BFI

Example of using a ' symbol to execute a command #! /bin/shdate= ' Date ' echo "Today is" $DATE

User inputs Two numbers, calculates two numbers and #! /bin/shread Aecho ' a= ' $aread becho ' b= ' $BC = ' expr $a + $b ' echo $c

An example of a loop 5 times #! /bin/shtimes=0while ["$times"! = "5"];d o        echo $times        times=$[$times + 1]done

Examples of multiple branches #! /bin/shcase "$" instart)        echo "is start"        ;; Stop)        echo "is stop"        ;; *)        echo "Is Nothing" Esac

Shell programming under Linux--startup script for the standard daemon