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IP Addressing and Subnetting

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Howto deploy a custom iptables firewall

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HowTo create a Debian package

chgrp

Article Index
1. Name
2. Synopsis
3. Frequently used options
4. Examples

1. Name

chgrp [man page] - change group ownership

2. Synopsis

chgrp [OPTION]... GROUP FILE...
 chgrp [OPTION]... --reference=RFILE FILE...

3. Frequently used options

-R, --recursive
       operate on files and directories recursively

4. Examples

Lets create directories in /tmp to test chgrp command.

# cd /tmp
 # mkdir -p directory1/directory2

also we can create file in /tmp/directory1/directory2

# touch /tmp/directory1/directory2/file
 # ls -ld /tmp/directory1/directory2/
 # ls -l directory1/directory2/

At this stage as we can see the group ownership is assigned to root for both directories and file. To change ownership of directory1 to linuxconfig we can enter command:

# chgrp linuxconfig /tmp/directory1/
 # ls -ld /tmp/directory1/
 # ls -ld /tmp/directory1/directory2/

The group ownership of directory1 has been changed to linuxconfig. To change group ownership of directory2 and file within directory2 we can use recursive options -R.

# chgrp -R linuxconfig /tmp/directory1/
 # ls -ld /tmp/directory1/
 # ls -ld /tmp/directory1/directory2/
 # ls -l /tmp/directory1/directory2/

change group ownership of directory and file