issue executing shell script

Question

I'm having a strange issue when I try and execute a shell script.

when I try to execute the script with ./scriptname.sh it just immediately returns to the prompt. The script has the correct permissions set. If I copy the script to another server it executes no problem at all.

I can execute other sh scripts on the server in question with no problem.

is there a way of troubleshooting this as I am at a loss?

Thanks in advance.

user1575765 · Accepted Answer · 2016-07-11 09:13:02Z

1

Best way to check the syntax errors, you can do the below.

sh -n script_name

If you wanted to execute the script and see the flow you can use the below

sh -x script_name

Hope it helps

answered Jul 11, 2016 at 9:13

user1575765

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5 Comments

user2841861 Over a year ago

Thanks. So sh -n command returned nothing so assume no syntax errors. sh -x was interesting. When using this command to execute script on trouble server the command is cut short. Any ideas why on problem server the script is being cut short.

user1575765 Over a year ago

At the starting of the shell script, you might used the interpreter like #!/bin/sh (or) #!/bin/ksh something of that sort. Can you please check whether it has valid path?

user2841861 Over a year ago

there's nothing in the script to set interpreter. It's stopping on + case $HOSTNAME in that's the last entry on problem server.

user1575765 Over a year ago

Seems its techincal issue in your source code, may be you can check the case match or you can post the code

user2841861 Over a year ago

solved it. I thought this script had been working previously but it can't have ever worked. The case was trying to match hostname in uppercase. Changed the script to lowercase and it started working. Thanks for your help.

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