Brian: /* 3) du - Find out how large files and directories are */

2014-02-13T14:00:16Z

‎3) du - Find out how large files and directories are

Brian: Created page with "==Top Linux Commands - Part 1== Thought I would make a list of the most useful Linux Commands used everyday. This is not a comprehensive list by any means, but this should g..."

2014-02-13T04:59:40Z

Created page with "==Top Linux Commands - Part 1== Thought I would make a list of the most useful Linux Commands used everyday. This is not a comprehensive list by any means, but this should g..."

New page

==Top Linux Commands - Part 1==

Thought I would make a list of the most useful Linux Commands used everyday.

This is not a comprehensive list by any means, but this should give you a good start on some of the common Linux commands.

===1) SSH - SSH is used to connect to remote terminals===

Connecting to a remote server

ssh brian@briansnelson.com
or
ssh -l brian briansnelson.com

Connecting over a different port

ssh -p 2020 -l brian briansnelson.com

===2) Find - As you can guess to find files on a server===

Location all files owned by a specific user and use ls to show the location and permissions

find / -group <groupname> -ls

Or Find which files have been changed in the last 5 days, (hacked sites)

find $PWD -mtime -5 -ls

Or save them to a text file for later use

find $PWD -mtime -5 -ls > ~/changedin5days.txt

===3) du - Find out how large files and directories are===

The /var partition is almost file, find out what is using up the space

du -ha /var --max-depth=1

Our home directory is almost at quota, why?

du -ha /home/brian --max-depth=1

===4) df - Find out if a partition is getting full===

This one is pretty basic, but you will find yourself using this command alot,

df -h

Shows the size in human readable format

df -i

Sometimes, you reach max inodes before reaching max disk space.

df -T

Show the type of file system for each partition

===5) grep - find lines within files===

grep is a command you will use alot when trying to find hacked files or searching log files

Trying to debug an issue with a website and only want to see your hits

tail -f /var/log/httpd/transfer.log | grep <your ipaddress>

Or to check your traffic to the server

grep <your ipaddress> /var/log/httpd/transfer.log

I will update and create more lists of useful Linux Commands

@@ Line 35: / Line 35: @@
 The /var partition is almost file, find out what is using up the space
-  du -ha /var --max-depth=1
+ du -ha /var --max-depth=1
 Our home directory is almost at quota, why?
-   du -ha /home/brian --max-depth=1
+ du -ha /home/brian --max-depth=1
 ===4) df - Find out if a partition is getting full===

Top Linux Commands Part 1 - Revision history

Brian: /* 3) du - Find out how large files and directories are */

Brian: Created page with "==Top Linux Commands - Part 1== Thought I would make a list of the most useful Linux Commands used everyday. This is not a comprehensive list by any means, but this should g..."