Executing multiple scripts using if condition

Shell Programming and Scripting
1

I have an if condition. If that condition is true then one script will be run and after that I need to check another condition based on the output value of first script.

i tried like below :

cd lock
 if [ $(ls -ltr | grep -q exitup) -eq 0 ]; then 
rm exitup
 if [ $(Appl_Monitor | echo $?) -ne 110 ]; then 
kb_shutdown 
kb_startup 
if [ $(ls -ltr | grep -q exitup) - eq 0 ]; then
rm exitup
 if [ $(Appl_Monitor | echo $?) -eq 110 ]; then
 echo " kb app is fine  $(ls -ltr | Appli_Monitor | echo $?) | mailx -s "KB App " abc@gmail.com 
else 
echo " Warning KB app is not running   $(ls -ltr | Appli_Monitor | echo $?) | mailx -s "KB App " abc@gmail.com
 fi 
fi
 fi 
fi

where Appl_Monitor , kb_shutdown ,kb_startup are scripts .

2

There are a lot of strange constructs in your script. So many that I can't quite figure out what you're trying to do.

Please explain in English what each of these scripts are supposed to do, what output and exit codes each of these scripts produce, and the conditions under which each script is supposed to be invoked.

3

i want to check a file called "exitup" in the directory called "locks" and if it presents then i need tp remove it and then i need to run a script called "Appl_monitor" and its exit status should be 110. if the exit status is other than 110 then i need to stop the application using a script called "kb_shutdown" and then start the application using a script called "kb_startup".

once it done again i need to check for the file "exitup" in the locks directory,if there need to remove it and then need to check the exit status of script called "Appl_Monitor".if it equals to 110 send mail that app is fine or else send a mail that app is not fine.

this is my requirement.

4

You didn't specify what operating system or shell you're using, but the following should work with any shell based on Bourne shell syntax (including, but not limited to, ash , bash , dash , ksh , and zsh ):

#!/bin/ksh
cd locks
if [ -e exitup ]
then	rm exitup
	Appl_monitor
	if [ $? -ne 110 ]
	then	kb_shutdown
		kb_startup
	fi
fi
if [ -e exitup ]
then	rm exitup
	Appl_monitor
	if [ $? -eq 110 ]
	then	subject="KB app is fine"
	else	subject="KB app is not fine"
	fi
	mailx -s "$subject" abc@gmail.com < /dev/null
fi