LinuxQuestions.org - how to run script

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how to run script

Hi,

I found one script on the linux device driver book

Code:

#!/bin/sh

module="scull"

device="scull"

mode="664"

# invoke insmod with all arguments we got

# and use a pathname, as newer modutils don't look in . by default

/sbin/insmod ./$module.ko $* || exit 1

# remove stale nodes

rm -f /dev/${device}[0-3]

major=$(awk "\\$2=  =\"$module\" {print \\$1}" /proc/devices)

mknod /dev/${device}0 c $major 0

mknod /dev/${device}1 c $major 1

mknod /dev/${device}2 c $major 2

mknod /dev/${device}3 c $major 3

# give appropriate group/permissions, and change the group.

# Not all distributions have staff, some have "wheel" instead.

group="staff"

grep -q '^staff:' /etc/group || group="wheel"

chgrp $group /dev/${device}[0-3]

chmod $mode  /dev/${device}[0-3]

I still confuse how to save this script (what name and where should i save it) and how to run this script.

I usually didn't use script instead of just running one by one command to load my module by using (insmod, mknod, chmod)

Save it as whatever you like, though it is usually a good idea to give it the extension ".sh". Then you make the file executable by running the command "chmod +x filename"; after that you can run the script from the terminal or from within your GUI file manager.

file name doesn't matter (you can call it <file>.sh but it's really not important). Create empty file:

touch <file>

Open it with editor:

vim <file>

Press 'i' on your keyboard to enter 'insert' mode.

Copy/paste the text of your script.

Press 'Esc'
Type ':wq' to save it.

Make the file executable:

chmod +x <file>

Run it (make sure you are in the same directory as file):

./<file>

klearview and MS3FGX,

Thank you for quick response, improve my knowledge and now i happy to use script