In previous chapter we have discussed differentfile commands,directory commands. We had also discussed about process commands with examples and grep command with example in previous articles. In this article i will try to explain the most important topic which is related to Unix File Permissions,dir...
Ash (Almquist Shell) - It is a POSIX-complaint lightweight Unix-based shell that replaced the Bourne shell. This shell has fewer libraries than the bash shell and executes the programs quickly. This shell is suitable for previous computers and users having less memory. Most Linux distributions ...
Dump(Backup Operation): The backup operation can have two values, 0 OR 1. If the value is 0, then there is no backup. It is disabled. Otherwise, if it is 1, then the backup of the partition is enabled. System administrators set this field to 0, as it uses an obsolete method they...
in unix-based systems, and why is it relevant? the cli in unix-based systems allows you to interact with the operating system using text-based commands. it's relevant because it provides greater control and flexibility compared to graphical user interfaces (guis). the cli enables you to ...
The last part is key to understanding how Bash works. In Unix and Linux, everything is a file. That means you can use the same commands without worrying about whether the I/O stream—the input and output—comes from a keyboard, a disk file, a socket, a pipe, or another I/O abstrac...
In this tutorial, we will look at Syslog in Linux and how to send logs to a remote machine using it. Syslog is a standard for message logging. It has been the standard logging mechanism on Linux/Unix systems for a very long time. Although most of the distros now ship with journald ...
On a UNIX system, for example, the attacker might have the server run ls to get a directory listing. Remote file inclusion The same as local file inclusion, except the attacker sends the server specially configured text that passes a remote file—that is, a file on a re...
What is /dev/tty[0-N] in Linux /dev/tty[0-N]is simply a virtual console that you can switch to from the main terminal if you are running a GUI system whereNrepresents theTTYnumber. By default,/dev/tty0is the default virtual console. ...
The null device in Unix systems is/dev/null. Its purpose is to immediately discard anything sent to it. It’s known also as a bucket or a blackhole. Like throwing something in a thrash bucket or sending it to a blackhole never to be seen again. ...
In command-lineoperating systemslike DOS or UNIX, colons appear frequently after command names when entering into executable programs or scripts - indicating whether or not those programs can be seen by other users and processes running on the same system. For example: ‘ls –l /usr/bin/: rx...