UNIX for Dummies Questions & Answers

Hi,

I have a file which don't have execute permission, but still it can be executed by "sh" like as below.
------------------------------------------------------------------
-rw-r----- 1 root other 30 May 8 15:43 test.sh
(svpkg1-nd:root) - ./test.sh
./test.sh: cannot execute
(svpkg1-nd:root) - sh test.sh
I am here
(svpkg1-nd:root) -
-----------------------------------------------------------
Please tell me the difference between these two ways of executions.
In this way other if other users have only read permission still they can execute the file.

Thanks in advance,
Ashish

Hi,
here are some ideas but i might be totally wrong:
- in the first case, since test.sh has no exec attribute, you get "cannot execute" error
- in the second case, you are telling the binary-executable 'sh' to run commands you pass as parameters (test.sh) ...
You need to strip out read attribute if you dont want the second case happening

Just to complement andryk answer, if you want to execute it as ./test.sh, you should put the executable flag in it, and you shell script should begin with the line:

Code:

#!/bin/sh

And here's to put the executable flag

Code:

chmod u+x test.sh

This first line is there in file. I am asking for difference of executing first way and second way

./filexy.sh requires the script to open the shell - what cannot be done without the x permission

doing sh filexy.sh means you open the shell and the script is passive executed in this shell ...

As long as you are allowed to use the shell you can execute the scripts this way

Rgds
zx