shell A Unix shell is a command-line interpreter or shell that provides a traditional Unix-like command line user interface. Users direct the operation of the computer by entering commands as text for a command line interpreter to execute, or by creating text scripts of one or more such commands. Users typically interact with a Unix … Continue reading Shell
Category: Basics
simple commands
Introduction to LINUX (Basic Commands) [root@localhost ~]# hostname localhost.localdomain [root@localhost ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:0C:29:63:46:BD inet addr:172.16.28.145 Bcast:172.16.28.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe63:46bd/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2332 errors:0 dropped:0 overruns:0 frame:0 TX packets:1455 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:257468 (251.4 KiB) TX bytes:192203 (187.6 KiB) … Continue reading simple commands
advanced file-permissions
Advanced File Permissions(sgid-suid-stickybit,chattr) SUID ( setuid ) :- If SUID bit is set on a file and a user executed it. The process will have the same rights as the owner of the file being executed. For example: passwd command have SUID bit enabled. When a normal user change his password this script update few … Continue reading advanced file-permissions
filepermissions
Introduction Linux is a multi-user OS that is based on the Unix concepts of file ownership and permissions to provide security, at the file system level. If you are planning improving your Linux skills, it is essential that have a decent understanding of how ownership and permissions work. There are many intricacies when dealing with … Continue reading filepermissions
inode
Inode Inode is a data structure that keeps track of all the information about a file. You store your information in a file, and the operating system stores the information about a file in an inode(sometimes called as an inode number). Information about files(data) are sometimes called metadata. So you can even say it in … Continue reading inode
What is Linux
What is Linux? Just like Windows XP, Windows 7, Windows 8, and Mac OS X, Linux is an operating system. An operating system is software that manages all of the hardware resources associated with your desktop or laptop. To put it simply – the operating system manages the communication between your software and your hardware. … Continue reading What is Linux
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