Shell Programming and Scripting

Hi,

I have manually changed umak value by umask 0033 , After that i would like to change umask value into 0022 through shell scripting..

But it is changing while running the script. Once come out from script, it has not changed ...

Ex:

Code:

>umask
0033
>./1.sh
0022
>umask
0033

plz Any suggestion ?

One of the things about inheriting settings is that you can't inherit from your children in order to apply the change to the current shell (rather than the shell spawned for the script to run in) you would have to invoke the commands in the script in the current shell using the dot "." operator eg.

Code:

~/$ . ~/.profile

Hi Again,

This is a my code :

Code:

#!/bin/bash

umask
echo " Before profile execute"
. $HOME/.profile
echo " After profile execute"
umask

Note: umask 0022 value is present in . $HOME/.profile file.

Execution steps:

Code:

[scrbgcddkcph411:/opt/apps/gxadm]$ umask
0033
[scrbgcddkcph411:/opt/apps/gxadm]$ ./1.sh
0033
 Before profile execute
 After profile execute
0022
[scrbgcddkcph411:/opt/apps/gxadm]$ umask
0033

any advice , I would like to change umask value

I meant that you should execute the commands in the script in the current shell, like so:

Code:

user@busybox ~/$ umask
0022
user@busybox ~/$ cat test.sh
#!/bin/bash

umask 033
user@busybox ~/$ . test.sh
user@busybox ~/$ umask
0033

Calling the script spawns a new shell process which ceases to exist when the script exits. You need to execute the commands in the context of the current shell, hence the use of dot opperator ".".

Ok. But before .profile execution. I need to perform one function. In this case, it is not working fine.
Any permanent solution for this.

Note: Some time, user can run script by ./script

Or Any other alternative way is appreciable.

( My requirement is that Already i am executing one script. which is cover all the our rquirement ( lot of function are included in that script).But newly we would like to change umask value through that script. We have tried 2 way
1) Already umask values is present in .profile file. so we tried to execute that file in that script by . <.profile>
2) Just we added umask 0022 value in top of the script .

Both are not working. we are not achieved goal.

Please advice or suggest on this

Thanks,
Mani