Condition loop.
 

Hi,

i am checking for a file sha.txt if not found then it will execute ./scr1 else it will exit.

i tried below elif statement to try if ./scr1 script gives error it should exit not execute below commands. But i am unsuccessful. Please help.

if/elif/else are all at the same level. You want to nest an if statement, to check something that happens in the first if.

Also, $# is the number of positional parameters, you seem to want $?, last command's return code.

How about telling us what error(s) you're getting??? And again, as with your other threads, have you tried looking any scripting guides up, or trying some different permutations of this?

How about telling us what error(s) you're getting??? And again, as with your other threads, have you tried looking any scripting guides up, or trying some different permutations of this?
Hard-coding a filename into a script isn't a good thing to do, nor is calling the scr1 script from a "./" directory. Makes your scripts much more prone to failure, and harder to maintain.

i tried all permutation.. what i am getting is, in ./scr1 script i just wrote echo " Here everything is fine" all the conditions were running fine. But when i changed that script (scr1) as eho "Here everything is fine" ie., instead of "echo" i wrote "eho" but still elif condition is true elif [ 0 -eq 0 ] and all other below commans ran. ?

No you didn't. What I posted above worked with no errors, and a minor change. That change I found on the first Google hit when searching for bash scripting examples to check if a file didn't exist.
So your problem is actually in the scr1 script, not what you posted? And amazingly, if you have errors in the script ("eho" instead of "echo"), the script won't work. Also, see previous statement about the very bad idea of using "./" to specify a path, and about hard-coding names into scripts. One of the MANY bash scripting tutorials you can find with a Google search is:
http://tldp.org/LDP/abs/html/

Lots of examples and advice.

TB0ne,

This is just a testing, i am going to implement after i am successful. So ./scr1 for now is no problem.

exactly i want it to come out when some thing is wrong in the script "scr1". not executed other below commands

Again, you need to go through the bash scripting tutorial you've been directed to numerous times.

Read your script, and think about what it's doing. You're checking for file sha.txt, and if it's not found, it runs scr1, with an elif. And did you read/follow the advice given to you by jhwilliams???

yes, i changed it to $? according to hime.

i am very new to shell scripting trying to explore myself.

i will just try to explain what i want.

if sha.txt is not there then it will run scr1, in scr1 there are certain simple commands are there if it fails i am trying to catch up that thing in elif condition and trying to stop other command to run after elfi. Hope i made it clear.

Yes, we understand. Again, go through the scripting tutorials, because that's how you're going to learn. And again, THINK about what you're doing, what the result(s) you want are, then step-by-step, THINK about how to achieve them.

You state your problem...would seem to make sense that you'd just put an echo statement in your script, to see what the return code of scr1 actually IS, so you can diagnose your problem from there. Also, just perform that ONE step, alone, by itself, until you get it to work...THEN add in more logic, so that you know where the problem(s) are as you go.

i tried and did it myself....

it was that i have start one if statment in src1 only not out side.

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