: bad interpreter: no such file or directory error

[Tarek_1]

Hi..
I'm trying to put this simple script in /etc/init.d/ and link it under /etc/rc3.d/ in order to be run after each reboot.
When i try to execute it i have the error:
: bad interpreter: no such file or directory
It's very strange, because if i copy and paste all the lines of the script it works.
I attach the script

[Tarek_1]

#!/bin/bash
echo "250 32000 32 128">/proc/sys/kernel/sem
echo "2147483648">/proc/sys/kernel/shmmax

[Kodjo Agbenu]

Your script seems OK. However, I guess the default shell is not /bin/bash but /bin/sh with symlink to /usr/sbin/sh.

Try to change the first line accordingly (either /bin/sh or /usr/bin/bash).

Another point : some distributions pre-install the "sysctl" software that can be used for what you are trying to achieve. To use this feature :

=> Check that sysctl is installed (/etc/sysctl.conf should exist)

=> Check that sysctl is invoked at system boot-up (grep -rli sysctl /etc/rc.d)

=> Edit /etc/sysctl.conf as follows :

kernel.sem = 250 32000 32 128
kernel.shmmax = 2147483648

=> To apply changes, type : sysctl -p. You can also reboot, as this will be automatically done at every reboot.


Good luck.

Kodjo

[U.SivaKumar_2]

Hi,
The problem is nowhere related to Kernel paramters mentioned. But due to the unwanted control characters present in the script. Do this to remove the control characters from your
script.
#dos2ux your_script
#chmod +x your_script

Execute the script and the error will not appear.

regards,
U.SivaKumar

[Paulo A G Fessel]

Hi, Tarek.

To set up these kernel sysctl's you don't need to write up a script - assuming that you're running RedHat >= 6.2.

Instead, modify /etc/sysctl.conf and add the lines:

sys.kernel.sem = "250 32000 32 128"
sys.kernel.shmmax = 2147483648

After adding these lines, they will tune these parameters in each reboot - no scripts neccessary.

HTH
Paulo Fessel

[Paulo A G Fessel]

Please, don't forget to assign points to the answers you got - this is the only way to keep interest and participation high.

[bebu]

Thanks Kodjo Agbenu!!! I got the same kind of error, when i changed the firs line to /bin/bash it started worked.Kudos.. :)