bash: Keyboard Shortcuts and Piping Commands

• Ctrl + K (Cut text to end of line)
• Ctrl + U (Cut text to beginning of line)
• Ctrl + W (Cut word located behind cursor)
• Alt + D (Cut word following cursor)
• Ctrl + Y (Paste most recently cut text)
• Alt + Y (Rotate back to previously cut text and paste it)

• Up Arrow (Previous Command)
• Alt + F (Word Forward)
• Alt + B (Word Backward)
• Ctrl + Alt (Beginning of Line)
• Ctrl + E (End of Line)
• Ctrl + L (Clear Screen)
• Alt + T (Transpose Words)
• Alt + U (Transform Uppercase)
• Alt + L (Transform Lowercase)
• Alt + Ctrl (Transform Capitalize)
• Ctrl + V (Insert Special Character)
• Ctrl + Ctrl (Delete entire line)

Recall last ten commands from history:

$ history 10

Execute command from history with value of xxx:

$ !xxx

Execute last command from history:

$ !!

Open historical command xxx in text editor:

$ fc xxx

• ? (Matches any one character)
• * (Matches any number of characters)
• < (Directs contents of file to a command)
• > (Directs command output to a file)
• 2> (Directs error from command to a file)
• &> (Directs command output and errors to a file)
• » (Directs output to file, appending it to the end of file)
• | (Pipes output of previous command to input of next command)
• ; (Sequentially executes next command)
• & (Runs command in background)
• $ (For expanding variables, substitutions, and expressions)
• $( ) (Command substitutions)
• $[ ] (Arithmetic expressions)

Executes pwd followed by ls:

$ pwd ; ls

Executes commands in new child shell:

$ (pwd ; ls)

Sorts passwd and opens the results in less:

$ cat /etc/passwd | sort | less

Untars file in background:

$ tar -xvf file &

Expands variable TEST:

$ echo $TEST

Search for all files in /home containing test in filename and open them in vi:

$ vi $(find /home | grep test)

Example of arithmetic expression:

$ echo "$[2000 - 1500]"