I am start to learn LINUX it the basic comments of kali linux

	KALI LINUX COMMANDS
A-Z of Kali Linux commands are here below:
		a
		apropos Search Help manual pages (man -k)
		apt-get Search for and install software packages (Debian)
		aptitude Search for and install software packages (Debian)
		aspell Spell Checker
		awk Find and Replace text, database sort/validate/index
		b
		basename Strip directory and suffix from filenames
		bash GNU Bourne-Again SHell
		bc Arbitrary precision calculator language
		bg Send to background
		break Exit from a loop
		builtin Run a shell builtin
		bzip2 Compress or decompress named file(s)
		c
		cal Display a calendar
		case Conditionally perform a command
		cat Concatenate and print (display) the content of files
		cd Change Directory
		cfdisk Partition table manipulator for Linux
		chgrp Change group ownership
		chmod Change access permissions
		chown Change file owner and group
		chroot Run a command with a different root directory
		chkconfig System services (runlevel)
		cksum Print CRC checksum and byte counts
		clear Clear terminal screen
		cmp Compare two files
		comm Compare two sorted files line by line
		command Run a command - ignoring shell functions
		continue Resume the next iteration of a loop
		cp Copy one or more files to another location
		cron Daemon to execute scheduled commands
		crontab Schedule a command to run at a later time
		csplit Split a file into context-determined pieces
		cut Divide a file into several parts
		d
		date Display or change the date & time
		dc Desk Calculator
		dd Convert and copy a file, write disk headers, boot records
		ddrescue Data recovery tool
		declare Declare variables and give them attributes
		df Display free disk space
		diff Display the differences between two files
		diff3 Show differences among three files
		dig DNS lookup
		dir Briefly list directory contents
		dircolors Colour setup for `ls'
		dirname Convert a full pathname to just a path
		dirs Display list of remembered directories
		dmesg Print kernel & driver messages
		du Estimate file space usage
		e
		echo Display message on screen
		egrep Search file(s) for lines that match an extended expression
		eject Eject removable media
		enable Enable and disable builtin shell commands
		env Environment variables
		ethtool Ethernet card settings
		eval Evaluate several commands/arguments
		exec Execute a command
		exit Exit the shell
		expect Automate arbitrary applications accessed over a terminal
		expand Convert tabs to spaces
		export Set an environment variable
		expr Evaluate expressions
		f
		false Do nothing, unsuccessfully
		fdformat Low-level format a floppy disk
		fdisk Partition table manipulator for Linux
		fg Send job to foreground
		fgrep Search file(s) for lines that match a fixed string
		file Determine file type
		find Search for files that meet a desired criteria
		fmt Reformat paragraph text
		fold Wrap text to fit a specified width.
		for Expand words, and execute commands
		format Format disks or tapes
		free Display memory usage
		fsck File system consistency check and repair
		ftp File Transfer Protocol
		function Define Function Macros
		fuser Identify/kill the process that is accessing a file
		g
		gawk Find and Replace text within file(s)
		getopts Parse positional parameters
		grep Search file(s) for lines that match a given pattern
		groupadd Add a user security group
		groupdel Delete a group
		groupmod Modify a group
		groups Print group names a user is in
		gzip Compress or decompress named file(s)
		h
		hash Remember the full pathname of a name argument
		head Output the first part of file(s)
		help Display help for a built-in command
		history Command History
		hostname Print or set system name
		i
		iconv Convert the character set of a file
		id Print user and group id's
		if Conditionally perform a command
		ifconfig Configure a network interface
		ifdown Stop a network interface
		ifup Start a network interface up
		import Capture an X server screen and save the image to file
		install Copy files and set attributes
		j
		jobs List active jobs
		join Join lines on a common field
		k
		kill Stop a process from running
		killall Kill processes by name
		l
		less Display output one screen at a time
		let Perform arithmetic on shell variables
		ln Create a symbolic link to a file
		local Create variables
		locate Find files
		logname Print current login name
		logout Exit a login shell
		look Display lines beginning with a given string
		lpc Line printer control program
		lpr Off line print
		lprint Print a file
		lprintd Abort a print job
		lprintq List the print queue
		lprm Remove jobs from the print queue
		ls List information about file(s)
		lsof List open files
		m
		make Recompile a group of programs
		man Help manual
		mkdir Create new folder(s)
		mkfifo Make FIFOs (named pipes)
		mkisofs Create an hybrid ISO9660/JOLIET/HFS filesystem
		mknod Make block or character special files
		more Display output one screen at a time
		mount Mount a file system
		mtools Manipulate MS-DOS files
		mtr Network diagnostics (traceroute/ping)
		mv Move or rename files or directories
		mmv Mass Move and rename (files)
		n
		netstat Networking information
		nice Set the priority of a command or job
		nl Number lines and write files
		nohup Run a command immune to hangups
		notify-send Send desktop notifications
		nslookup Query Internet name servers interactively
		o
		open Open a file in its default application
		op Operator access
		p
		passwd Modify a user password
		paste Merge lines of files
		pathchk Check file name portability
		ping Test a network connection
		pkill Stop processes from running
		popd Restore the previous value of the current directory
		pr Prepare files for printing
		printcap Printer capability database
		printenv Print environment variables
		printf Format and print data
		ps Process status
		pushd Save and then change the current directory
		pwd Print Working Directory
		q
		quota Display disk usage and limits
		quotacheck Scan a file system for disk usage
		quotactl Set disk quotas
		r
		ram ram disk device
		rcp Copy files between two machines
		read Read a line from standard input
		readarray Read from stdin into an array variable
		readonly Mark variables/functions as readonly
		reboot Reboot the system
		rename Rename files
		renice Alter priority of running processes
		remsync Synchronize remote files via email
		return Exit a shell function
		rev Reverse lines of a file
		rm Remove files
		rmdir Remove folder(s)
		rsync Remote file copy (Synchronize file trees)
		s
		screen Multiplex terminal, run remote shells via ssh
		scp Secure copy (remote file copy)
		sdiff Merge two files interactively
		sed Stream Editor
		select Accept keyboard input
		seq Print numeric sequences
		set Manipulate shell variables and functions
		sftp Secure File Transfer Program
		shift Shift positional parameters
		shopt Shell Options
		shutdown Shutdown or restart linux
		sleep Delay for a specified time
		slocate Find files
		sort Sort text files
		source Run commands from a file `.'
		split Split a file into fixed-size pieces
		ssh Secure Shell client (remote login program)
		strace Trace system calls and signals
		su Substitute user identity
		sudo Execute a command as another user
		sum Print a checksum for a file
		suspend Suspend execution of this shell
		symlink Make a new name for a file
		sync Synchronize data on disk with memory
		t
		tail Output the last part of file
		tar Tape ARchiver
		tee Redirect output to multiple files
		test Evaluate a conditional expression
		time Measure Program running time
		times User and system times
		touch Change file timestamps
		top List processes running on the system
		traceroute Trace Route to Host
		trap Run a command when a signal is set(bourne)
		tr Translate, squeeze, and/or delete characters
		true Do nothing, successfully
		tsort Topological sort
		tty Print filename of terminal on stdin
		type Describe a command
		u
		ulimit Limit user resources
		umask Users file creation mask
		umount Unmount a device
		unalias Remove an alias
		uname Print system information
		unexpand Convert spaces to tabs
		uniq Uniquify files
		units Convert units from one scale to another
		unset Remove variable or function names
		unshar Unpack shell archive scripts
		until Execute commands (until error)
		uptime Show uptime
		useradd Create new user account
		userdel Delete a user account
		usermod Modify user account
		users List users currently logged in
		uuencode Encode a binary file
		uudecode Decode a file created by uuencode
		v
		v Verbosely list directory contents (`ls -l -b')
		vdir Verbosely list directory contents (`ls -l -b')
		vi Text Editor
		vmstat Report virtual memory statistics
		w
		wait Wait for a process to complete
		watch Execute/display a program periodically
		wc Print byte, word, and line counts
		whereis Search the user's $path, man pages and source files for a program
		which Search the user's $path for a program file
		while Execute commands
		who Print all usernames currently logged in
		whoami Print the current user id and name (`id -un')
		wget Retrieve web pages or files via HTTP, HTTPS or FTP
		write Send a message to another user
		x
		xargs Execute utility, passing constructed argument list(s)
		xdg-open Open a file or URL in the user's preferred application.
		yes Print a string until interrupted