Shell script not executing

executablekshshell

Not sure what is happening.

Lets call script a.sh with the following

/users/guru$ cat a.sh
#! /usr/bin/ksh

echo "Hello"
date

Execute with ksh. It gets done.

/users/guru$ ksh a.sh
Hello
Tue Jul 15 15:00:52 EDT 2014

Ensure file permission and ksh path.

/users/guru$ ls -l a.sh
-rwxrwxrwx    1 guru  kpc         35 Jul 15 15:00 a.sh
/users/guru$ a.sh
ksh: a.sh:  not found
/users/guru$ which ksh
/usr/bin/ksh

Best Answer

Try "./a.sh" when trying to execute it. It needs to know where the file is at.

The './' tells it to look in the current directory.

Related Solutions

Shell – Executing a script in zsh – file permissions

When you run ./s, you tell the kernel to execute the program s. If you have execution permission, then the kernel reads the first few bytes of the file, sees the #! line so it knows that this is a script, and runs the interpreter, passing it the script name as its first argument. If you don't have execute permission, the kernel aborts the execution at the first step.

When you run zsh s, you execute zsh, and tell it to read the file called s and interpret it as commands. You aren't executing s, you're executing zsh. Same thing with sh s or cat s.

When you run source s, again, you tell zsh to read a file, so what matters is that you have read permission on it.

Shell – Cronjob doesn’t execute shell script, but when I am executing it standalone it works. Why

Items in crontab execute with a limited environment. At the top of your script you can specify your PATH, for example,

PATH=$PATH:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin

or alternatively you can call each executable with its absolute path.

Best Answer

Related Solutions

Shell – Executing a script in zsh – file permissions

Shell – Cronjob doesn’t execute shell script, but when I am executing it standalone it works. Why

Related Question