Welcome to the Linux Knowledge Base and Tutorial
so you want to learn how to use the Bash command line interface (terminal) on Unix/Linux. Or, it’s part of a subject you’re doing and so you’re learning it because you have to. Either way, that’s great. You’re learning how to use a powerful tool that can make your life easier, and make you awesome (more so than I’m sure you already are) .
Complete tutorial will cover the below things:-
- Installation – Installation of different flavor of Linux
- Un installation –
- The Command Line – What is it, how does it work and how do I get to one.
- Basic Navigation – An introduction to the Linux directory system and how to get around it.
- More About Files – Find out some interesting characteristics of files and directories in a Linux environment.
- Manual Pages – Learn how to make the most of the Linux commands you are learning.
- File Manipulation – How to make, remove, rename, copy and move files and directories.
- Vi Text Editor – Discover a powerful Linux based text editor.
- Wildcards – Also referred to as globing, this is a means to refer to several files in one go.
- Permissions – Learn to identify and change the permissions of files and directories and what the consequences of these are.
- Filters – An introduction to various commands that allow us to mangle data in interesting and useful ways.
- Grep and Regular Expressions – Master a powerful pattern matching language that is useful for analyzing and processing data.
- Piping and Redirection – Join commands together in powerful combinations.
- Process Management – See what is currently running on your Linux system and what state the system is in, learn how to kill programs that have hung and put jobs in the background.
- Scripting – Be happy. Get the computer to do tedious and repetitive tasks for you.
- Cheat Sheet – A quick reference for the main points covered in this tutorial.
- Administration
- Memory Management
- Networking
- Email System
- File System and File Management
- Utilities
linux date time set command
Use the blow command to set the linux date #date 072511242014 where 07= mm (Month) 25=dd (Date) 11=hh (Hour) 24=mmRead More »
How to find/display your MAC Address: Unix/Linux
Linux As the root user (or user with appropriate permissions) Type “ifconfig -a” From the displayed information, find eth0 (thisRead More »
Execute root commands via PHP
I have a CentOS 5.7 linux server and use php5.3.x. On a pfSense system, you can restart services-that required rootRead More »
centos add and remove new user
To add a user to the system: Issue the useradd command to create a locked user account: useradd Unlock the account byRead More »
#1153 - Got a packet bigger than 'max_allowed_packet' bytes
Login to mysql and run the below command: set global net_buffer_length=1000000; set global max_allowed_packet=1000000000;Read More »
Backup and Restore Mysql database table
Dump and restore from .sql Dump mysqldump db_name table_name > table_name.sql Restore mysql -u <user_name> -p db_name mysql> source <full_path>/table_name.sqlRead More »
No route to host (113)
In host machine iptables is running and is blocking the port 5901. Kill all the vncserver desktop in the host machineRead More »
httpd: unrecognized service
I’ve installed the Apache web server on Kali Linux and I’m able to start/stop it with: /usr/usr/local/apache2/bin/apachectl restart[start/stop] But ifRead More »
linux memoery space command
# df -h will show you where your free space (if any) is, on your mounted partitions. # du -shRead More »
Command for determining my public IP on linux PC
Finding external IP using external services The easiest way is to use an external service via a commandline browser orRead More »
How can I download an entire website?
wget --mirror -p --convert-links -P ./LOCAL-DIR WEBSITE-URL –mirror : turn on options suitable for mirroring. -p : download all files that areRead More »
Linux IP Commands
Display Current Config for all NIC’s: ifconfig Display Current Config for eth0: ifconfig eth0 Assign IP: ifconfig eth0 192.168.1.2 Ping:Read More »
Linux Gateway / Router IP Address
How Do I Find Out My Linux Gateway / Router IP Address? need to use route command. This command canRead More »
cgi-bin folder in a subdomain
Should I delete the cgi-bin folder in a subdomain A cgi-bin folder was automatically created in the directory for clothing.mysite.com.Read More »
Clear Memory Cache on Linux centos
By default, every Linux OS has an efficient memory management system used to clear the buffer cache periodically. You canRead More »