Open directory in finder
Pbcopy and pbpaste
grep 'searching for' hugeFile.txt | pbcopy pbpaste | sed 's/ / /g'
mdfind command is the spotlight search from command line
say "Hello there"
The say command invokes the system text-to-speech capabilities.
Will restore the previous directory you were in. Very handy if you accidentally type cd and flip to home.
And some usefull aliases
alias ..="cd .." alias ...="cd .. ; cd .." alias ls="ls -G" # list alias la="ls -Ga" # list all, includes dot files alias ll="ls -Gl" # long list, excludes dot files alias lla="ls -Gla" # long list all, includes dot files alias stfu="osascript -e 'set volume output muted true'" alias pumpit="osascript -e 'set volume 10'" alias ips="ifconfig -a | perl -nle'/(d .d .d .d )/ && print $1'" alias myip="dig short myip.opendns.com @resolver1.opendns.com"
Bash Keyboard Shortcuts
Moving the cursor:
Ctrl a Go to the beginning of the line (Home) Ctrl e Go to the End of the line (End) Hold the Option key and click on the current line = Jump Backwards Ctrl p Previous command (Up arrow) Ctrl n Next command (Down arrow) Hold the Option key and click on a previous line = Jump upwards Ctrl f Forward one character Ctrl b Backward one character Alt b Back (left) one word or use Option Right-Arrow Alt f Forward (right) one word or use Option Left-Arrow Ctrl xx Toggle between the start of line and current cursor position
Ctrl L Clear the Screen, similar to the clear command Alt Del Delete the Word before the cursor. Alt d Delete the Word after the cursor. Ctrl d Delete character under the cursor Ctrl h Delete character before the cursor (backspace) Ctrl w Cut the Word before the cursor to the clipboard. Ctrl k Cut the Line after the cursor to the clipboard. Ctrl u Cut/delete the Line before the cursor position. Alt t Swap current word with previous Ctrl t Swap the last two characters before the cursor (typo). Esc t Swap the last two words before the cursor. ctrl y Paste the last thing to be cut (yank) Alt u UPPER capitalize every character from the cursor to the end of the current word. Alt l Lower the case of every character from the cursor to the end of the current word. Alt c Capitalize the character under the cursor and move to the end of the word. Alt r Cancel the changes and put back the line as it was in the history (revert). ctrl _ Undo TAB Tab completion for file/directory names
For example, to move to a directory ‘sample1’; Type
cd sam ; then press
type just enough characters to uniquely identify the directory you wish to open.
Special keys: Tab, Backspace, Enter, Esc
Text Terminals send characters (bytes), not key strokes.
Special keys such as Tab, Backspace, Enter and Esc are encoded as control characters.
Control characters are not printable, they display in the terminal as ^ and are intended to have an effect on applications.
Ctrl I = Tab Ctrl J = Newline Ctrl M = Enter Ctrl [ = Escape
Many terminals will also send control characters for keys in the digit row:
Ctrl 2 → ^@ Ctrl 3 → ^[ Escape Ctrl 4 → ^ Ctrl 5 → ^] Ctrl 6 → ^^ Ctrl 7 → ^_ Undo Ctrl 8 → ^? Backward-delete-char
Ctrl v tells the terminal to not interpret the following character, so
Ctrl v Ctrl-I will display a tab character,
Ctrl v ENTER will display the escape sequence for the Enter key:
Ctrl r Recall the last command including the specified character(s) searches the command history as you type. Equivalent to : vim ~/.bash_history. Ctrl p Previous command in history (i.e. walk back through the command history) Ctrl n Next command in history (i.e. walk forward through the command history) Alt . Use the last word of the previous command Ctrl s Go back to the next most recent command. (beware to not execute it from a terminal because this will also launch its XOFF). Ctrl o Execute the command found via Ctrl r or Ctrl s Ctrl g Escape from history searching mode
Ctrl C Interrupt/Kill whatever you are running (SIGINT) Ctrl l Clear the screen Ctrl s Stop output to the screen (for long running verbose commands) Ctrl q Allow output to the screen (if previously stopped using command above) Ctrl D Send an EOF marker, unless disabled by an option, this will close the current shell (EXIT) Ctrl Z Send the signal SIGTSTP to the current task, which suspends it. To return to it later enter fg 'process name' (foreground).
To use the Alt Key Shortcuts in OS X – Open Terminal Preferences | Settings Tab | Keyboard | Tick « Use option as meta key »
Emacs mode vs Vi Mode
All the above assume that bash is running in the default Emacs setting, if you prefer this can be switched to Vi shortcuts instead.
Set Vi Mode in bash:
$ set -o vi
Set Emacs Mode in bash:
$ set -o emacs