Linux Server and Workstation Configuration How To

1. wc

Command wc Displays the number of bytes, words and lines found in the file. Syntax wc [options] [files] Options -c displays only the number of bytes. -w only shows the number of words. -l ...

2. How To Enable Root Login on Fedora

This how to shows how to enable root log in on fedora GUI Desktop. Open Terminal from Applications -> System Tools Type su - and then insert root pasword Edit /etc/pam.d/gdm configuration ...

3. groups

Command groups groups command shows the groups to which the user belongs. Syntax groups [username] Description groups command displays the names of groups to which the user belongs. Unless specify ...

4. free

... displays information about the physical memory (RAM) and swap space (on disk). In the output information shows the total amount of memory, as well as the number used and free memory.  ...

5. diff

Command diff diff command shows the differences between two text files (or all files with the same names in two different directories). Syntax diff [options] first_file a second_file Options -a ...

6. df

... output data. -help displays a help message. Description The df command shows the number of free and occupied space in this file system. If you want to know how full of all your disks, type df command ...

7. Linux, UNIX User Management Commands

...  last Display the last users logged on and how long.     lastb Shows failed login attempts. This command requires the file /var/log/btmp to exist in order to work. Type ...

8. cat

... the invisible characters. -N enumerates all the output lines, starting with 1. -S replaces several blank lines to one blank line. -T displays tabs as ^I. -V show invisible characters. -A shows all characters ...