Troubleshooting CentOS

Using cat, less, and more

The cat command has been with us for a long time and, returning to our previous discussion relating to hardware and the contents of the /proc directory, you can use the cat command to view detailed information about your server's CPU:

# cat /proc/cpuinfo

If you wish to know more about the server's memory, you can use:

# cat /proc/meminfo

Then, there is always the chance to learn more about your devices by typing:

# cat /proc/devices

As useful as cat is, it is also known for providing a dump of the entire content on the screen, a condition that can seem a little unwieldy if the file is greater than 1,000 lines long. So, in these circumstances, the other option is to use the less and more commands in order to page through ...