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How do you execute more than one command or program from a single command line entry?

Posted on September 5, 2022 by Author

How do you execute more than one command or program from a single command line entry?

The semicolon (;) operator allows you to execute multiple commands in succession, regardless of whether each previous command succeeds. For example, open a Terminal window (Ctrl+Alt+T in Ubuntu and Linux Mint). Then, type the following three commands on one line, separated by semicolons, and press Enter.

How do I run a one by one command?

There are 3 ways to run multiple shell commands in one line:

  1. 1) Use ; No matter the first command cmd1 run successfully or not, always run the second command cmd2:
  2. 2) Use && Only when the first command cmd1 run successfully, run the second command cmd2:
  3. 3) Use ||

How do I run a script on desktop Linux?

GUI method to run . sh file

  1. Select the file using mouse.
  2. Right-click on the file.
  3. Choose Properties:
  4. Click Permissions tab.
  5. Select Allow executing file as a program:
  6. Now click the file name and you will be prompted. Select “Run in the terminal” and it will get executed in the terminal.

How do I run a Linux command continuously?

How to Run or Repeat a Linux Command Every X Seconds Forever

  1. Use watch Command. Watch is a Linux command that allows you to execute a command or program periodically and also shows you output on the screen.
  2. Use sleep Command. Sleep is often used to debug shell scripts, but it has many other useful purposes as well.
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How do I run multiple scripts in Linux?

To run multiple commands in a single step from the shell, you can type them on one line and separate them with semicolons. This is a Bash script!! The pwd command runs first, displaying the current working directory, then the whoami command runs to show the currently logged in users.

How do I run a command group in Linux?

You can use multiple operators to run multiple commands at a time. In the following example, three commands are combined with OR (||) and AND (&&) operators. After running the command, first of all, it will change the current directory to newdir if the directory exists.

How do you concatenate a command in Linux?

4. Concatenate Commands Conditionally

  1. 4.1. Concatenate Commands With “&&“ The “&&” or AND operator executes the second command only if the preceding command succeeds.
  2. 4.2. Concatenate Commands With “||” The “||” or OR operator executes the second command only if the precedent command returns an error.

How do I create a .sh file in Linux?

How to Write Shell Script in Linux/Unix

  1. Create a file using a vi editor(or any other editor). Name script file with extension . sh.
  2. Start the script with #! /bin/sh.
  3. Write some code.
  4. Save the script file as filename.sh.
  5. For executing the script type bash filename.sh.
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How do I run a script on my desktop?

To run from command prompt, use either Windows Key + R and type ‘cmd’ or click start and type ‘cmd’ into search box. Then you can drag your script to the command prompt window and press Enter to run it.

How do I run a Linux script in 5 minutes?

Run a program or script every 5 or X minutes or hours

  1. Edit your cronjob file by running crontab -e command.
  2. Add the following line for an every-5-minutes interval. */5 * * * * /path/to/script-or-program.
  3. Save the file, and that is it.

How do you make a script run periodically?

If you want to run a command periodically, there’s 3 ways :

  1. using the crontab command ex. * * * * * command (run every minutes)
  2. using a loop like : while true; do ./my_script.sh; sleep 60; done (not precise)
  3. using systemd timer.

How run multiple processes at once Linux?

The next method that we can use to run processes in parallel is our regular xargs command. Xargs supports an option to specify the number of processes that you want to run simultaneously. See below. seq command will simply give 1, 2, and 3 as output in three lines.

How do I run a command as a different user in Linux?

Run Command as a Different User 1 To run a command as a different user, in the terminal, enter the following command: whoami 2 The system should display your username. Next, run the following command: sudo –u [different_username] whoami 3 Enter the password for [different_username], and the whoami command will run and display the different user.

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Why do Linux users prefer desktop and mobile applications?

Desktop and mobile Linux users have a healthy appetite for new software. Linux app stores and repositories lack applications compared to their proprietary counterparts. Technical enthusiasts are encouraged to direct their passion and creativity towards creating fresh apps for Linux users.

How to run an executable text file in Linux?

You can get around this by executing it via the terminal or, if you use GNOME, click the Files menu in the top bar, and select “Preferences”. 4. Select the “Behavior” tab and choose the “Run them” option under “Executable Text Files”. Now the “Run” option should appear when you right-click the executable text file. 5.

What is a desktop file in Linux?

A .desktop file is simply a shortcut that is used to launch application in Linux. Without the .desktop file, your application won’t show up in the Applications menu and you can’t launch it with third-party launchers such as Synapse and Albert. Most applications, when installed,…

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