Navigating through the Terminal will become second nature as you gain experience and incorporate these tips into your daily routine. Press Enter to execute the command or Control + G to exit search mode.Īs you become familiar with the various ways to open and close the Terminal on your Mac, along with the essential shortcuts and tips for efficient command line usage, you’ll discover the immense power and flexibility that the Terminal offers.īy learning how to harness this power, you can unlock a new level of control and customization for your Mac. Start typing any part of a previous command, and it will appear as you type. This lets you search through your command history. Search command history: Press Control + R to enter reverse-i-search mode.Open a file or folder: Use the open command followed by a file or folder path to open it in Finder.If you want to change the shell exit behavior, see Change Profiles Shell settings. If anything’s still in progress, a dialog appears. This ensures that commands actively running in the shell are closed. This saves time when working with long or complex file paths. In the Terminal app on your Mac, in the window running the shell process you want to quit, type exit, then press Return. Drag and drop files or folders: Drag a file or folder from Finder directly into the Terminal window to automatically insert its file path at the cursor position.This is helpful when you forget to add sudo to a command that requires it. Run the last command as sudo: Type sudo !! and press Enter to run the previous command with sudo (administrative) privileges.Delete the entire line: Press Control + U to delete the entire line.Jump to the beginning or end of a line: Press Control + A to move the cursor to the beginning of the line, or Control + E to move it to the end.Scroll through command history: Use the Up and Down arrow keys to scroll through your command history to quickly reuse previously entered commands.Autocomplete file paths and commands: Press the Tab key while typing a file path or command to autocomplete it based on the files and directories in the current folder, or the available commands in your system.Clear the screen: Press Command + K to clear the terminal screen, removing all previous commands and output.While this is just touching the surface of what Terminal can do, here are a few shortcuts and tips to improve your productivity and efficiency when working with the Terminal app. The possibilities with the command line are endless, and it will take some getting used to. īecause of this, when the script is executed, you won't find a process named after script (or a process with the script's name in the command line) and pgrep will fail.Opening the Terminal app is just the first step. Usually the parent shell guesses that the script is written for the the same shell (minimal Bourne-like shells run the script with /bin/sh, bash runs it as a bash subprocess). Neither SIGKILL or SIGTERM can be set up as a keyboard shortcut the way SIGINT is.Īll this is moot if your script doesn't contain a shebang line. You might want to try SIGTERM ( -TERM) before going for the kill. However, SIGKILL can't be trapped, and it is usually a last-resort option. One of the commands that the script launches may be trapping SIGINT, which is probably why Ctrl C is ineffective. You only need to stop the script if you can't open another terminal. INT is used to send SIGINT, and so this command is the equivalent of pressing Ctrl C on the terminal. In this case, to send a signal to process group created by test.sh, you'd do: kill -INT -17802 Where PID is the process ID of the script.Ĭonsider a script test.sh which launches some processes. For the kill command, process leader is denoted thus: kill -PID To send a signal to all processes in this group, you send it to the process leader. When a command is executed in a shell, the process it starts and all its children are part of the same process group (in this case, the foreground process group). One is to stop the script ( Ctrl Z), get the PID of the script and send SIGKILL to the process group.
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