Linux Commands

Basic Linux commands:

#ls -al = Displays information about all files/directories (including hidden)

#pwd = Show the path of current directory

#mkdir directory-name = Create a directory

#rm file-name = Delete file

#rm -r directory-name = Delete directory recursively

#rm -f file-name = Forcefully remove file

#rm -rf directory-name = Forcefully remove directory recursively

#cp file1 file2 = Copy file 1 to file 2

#cp -r dir1 dir2 = Copy dir1 to dir2, create dir2 if it doesn't exist

#mv file1 file2 = Rename source to dest/ move source to directory

#ln -s /path/to/file-name link-name = Create symbolic link to file link

#touch file = Create or update file

#cat > file = Place standard input into file

#more file = Output contents of file

#head file = Output first 10 lines of file

#tail file = Output last 10 lines of file

#tail -f file = Output contents of file as it grows starting with the last 10 lines

#gpg -c file = Encrypt file

#gpg file.gpg = Decrypt file

#wc = Print the number of bytes, words, and lines in files

#xargs = Execute command lines from standard input

#ps = Display your currently active processes

#usermod = Modify user information

#id = Show the active user id with login and group

#last = Show last logins on the system

#who = Show who is logged on the system

#userdel sam = Delete user "sam"

#adduser sam = Add user "sam"

#whoami = Who you are logged in as

#finger user = Display information about user

#date = Show the current date

#cal = Show this month calendar

#w = Display who is online

#uname -a = Display linux system information

#uname -r = Display kernel release information

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