Linux

When connecting to a Linux server, we need to know the name of the running Linux distribution, its version number, and the kernel version number.

This is often done to determine:

To compress a directory in Linux you can use the zip command:

zip -r output_file.zip folder

You can compress multiple directories too by adding the folders' names :

zip -r output_file.zip folder1 folder2 folder3

To decompress the zipped file, use the command unzip:

To compress a directory in Linux, you can use the tar command:

tar -zcvf file.tar.gz folder

To exclude a specific folder or files, use the –exclude= option with the folder name:

tar -zcvf file.tar.gz –exclude='temp' –exclude='node_modules' folder

To decompress a file, use the -x option:

To get information about the total and available space on the Linux file system, you can use the df command.

df

The df command displays information about all mounted filesystems, including total size, space used, percentage usage, and mount point:

To search for a specific text on a Linux system, the grep command can be used according to the following syntax:

grep -iRl "text_to_search" ./

The basic parameters are:

• i: ignore text case (uppercase or lowercase)
• R: search recursively in subfolders files
• l: show file names instead of parts of the file contents

The folder path to be searched is specified last.