Linux bash Shell Common command collation

use these commands to do almost anything you want to do.

Command	Describe
Alias	Define an alias for the specified command
Bg	Run of later mode recovery jobs
Bind	Bind a keyboard sequence to a ReadLine function or macro
Break	Exit For, while, select, until Loops
Builtin	Executes the specified shell built-in command
Cd	Switches the current directory to the specified directory
Caller	Returns the context of all active child function calls
Command	Executes the specified command instead of the usual shell lookup
Compgen	Generate a possible complement match for the specified word
Complete	Shows how the specified word is fully complement
Continue	Continue with the next iteration of the for, while, select, until Loops
Declare	Declaring a variable or variable type
Dirs	Displays a list of current storage directories
Dirsown	Removes the specified job from the job list for the process
Echo	Outputs the specified character to stdout
Enable	To start or disable built-in shell commands
Eval	Stitch the specified parameters into a single command, and then execute the command
Exec	Replace the shell process with the specified command
Exit	Force the Shell to exit with the specified status code
Export	Sets the specified variable to be available to the child shell process
Fc	Select a list of commands from the history record
Fg	Resume job running in front-end mode
Getopts	Parse the specified positional parameters
Hash	Find and remember the full path name of the specified command
Help	Show Help Files
History	Show command history
Jobs	List the active jobs
Kill	Sends a system signal to the specified process ID (PID)
Let	Calculates each parameter in a mathematical expression
Local	Creating a scoped variable in a function
Logout	Exit Shell Login
popd	Delete records from the directory stack
Printf	displaying text using a formatted string
pushd	Add a directory to the directory stack
Pwd	Displays the path name of the current working directory
Read	Reads a row of data from stdin and assigns it to a variable
ReadOnly	Reads a row of data from stdin and assigns it to a variable that cannot be modified
Return	Forces the function to exit with a value that may be called by the script to extract
Set	setting and displaying the values and shell properties of environment variables
Shift	Set parameter down one position in turn
Shopt	Turn on/off variable values that control the shell's optional behavior
Suspend	Suspends execution of the shell, knowing that a sigcont signal is received
Test	Returns exit status code 0 or 1 based on specified criteria
Times	Displays the cumulative user and system time
Trap	If a specified system signal is received, execute the specified command
Type	Displays the specified word if it will be interpreted as a command
Ulimit	Sets an upper limit for the specified resource for the system user
Umask	Set default permissions for new files and directories
Unalias	Delete the specified alias
unset	Delete the specified environment variable or shell attribute
Wait	Waits for the specified process to complete and returns the outstanding status code
Bzip2	Using Burrows-wheeler block sort text compression algorithm and Huffman coded compression method
Cat	List the contents of the specified file
Chage	Modify the password expiration date for the specified system user account
Chfn	Modify note Information for a specified user account
Chgrp	To modify the default genus group for a specified file or directory
chmod	Modify system security permissions for a specified file or directory
Chown	Modifies the default owner of a specified file or directory
chpasswd	Read a login/password to the file and update the password
Chsh	Modify the default shell for a specified user account
Compress	The original UNIX file compression tool
Cp	Copy the specified file to a different location
Date	Display dates in various formats
Df	Displays statistics on the current disk space for all mounted devices
Du	Displays statistics on disk usage for the specified file path
File	To view the file type of a specified file
Find	Recursive lookup of files
Finger	Display information about a user's account on a Linux or remote system
Free	View available and used memory on the system
Grep	Finds the specified text string in a file
Groupadd	Create a new system group
Groupmod	Modify an existing system group
Gzip	GNU Project compression tool with Lempel-ziv encoding
Head	Displays the beginning of the contents of the specified file
Killall	Sends a system signal to a running process based on the process name
Less	Advanced methods for viewing the contents of a file
Link	Create a link to a specified file with an alias
Ls	Listing Directory Contents
Mkdir	Create the specified directory under the current directory
More	Lists the contents of the specified file, pausing after each screen of data
Mount	Display a disk device mounted on a virtual file system or mount a disk device to a virtual file system
Mv	Rename or move a file
Nice	Use different priorities on the system to run commands
passwd	Modify the password for a system user account
Ps	Displays information about processes running on the system
Pwd	Show current directory
Renice	To modify the priority of applications running on the system
Rm	Delete the specified file
RmDir	Delete the specified directory
Sort	Organizes data in a data file based on the specified order
Stat	Displays file statistics for the specified file
Sudo	Run the app as the root user account
Tail	Displays the end portion of the specified file content
Tar	Archive data and directories into a single file
Touch	Create a new empty file or update the timestamp of an existing file
Top	Displays the active process and describes important system statistics
Umount	Remove a mounted disk device from the virtual file system
Uptime	Displays information about how long the system has been running
Useradd	Create a new System user account
Userdel	Delete an existing system user account
Usermod	Modify an existing system user account
Vmstat	Generate a detailed on-system memory and CPU usage report
which	Find the location of the executable file
Zip	Unix versions of Windows PKZIP programs

Linux bash Shell Common command collation