Script

How to make your own Ubuntu post-installation script

How to make your own Ubuntu post-installation script
  1. How do I create a script in Ubuntu?
  2. How do I create a .sh file in Linux?
  3. How do I make a script run automatically in Linux?
  4. How do I create a Linux installer?
  5. How do I create a shell script?
  6. What language does Linux terminal use?
  7. What is $? In Unix?
  8. How do I run an executable file in Linux?
  9. How do I find the startup script in Linux?
  10. How do I make a shell script run automatically?
  11. Where are the startup scripts in Linux?

How do I create a script in Ubuntu?

Steps to write and execute a script

  1. Open the terminal. Go to the directory where you want to create your script.
  2. Create a file with . sh extension.
  3. Write the script in the file using an editor.
  4. Make the script executable with command chmod +x <fileName>.
  5. Run the script using ./<fileName>.

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.

How do I make a script run automatically in Linux?

Basic rundown:

  1. Create a file for your startup script and write your script in the file: $ sudo nano /etc/init.d/superscript.
  2. Save and exit: Ctrl + X , Y , Enter.
  3. Make the script executable: $ sudo chmod 755 /etc/init.d/superscript.
  4. Register script to be run at startup: $ sudo update-rc.d superscript defaults.

How do I create a Linux installer?

Create a Self-Extracting Installer in Linux

  1. Install makeself cd /opt/app wget https://megastep.org/makeself/makeself-2.1.5.run chmod 755 makeself-2.1.5.run ./makeself-2.1.5.run cd makeself-2.1.5 cp *.sh /usr/bin.
  2. Example.

How do I create a shell script?

How to Write a Basic Shell Script

  1. Requirements.
  2. Create the File.
  3. Add the Command(s) and Make it Executable.
  4. Run the Script. Add the Script to your PATH.
  5. Use Input and Variables.

What language does Linux terminal use?

Stick Notes. Shell Scripting is the language of the linux terminal. Shell scripts are sometimes referred to as “shebang” which is derived from the “#!” notation. Shell scripts are executed by interpreters present in the linux kernel.

What is $? In Unix?

$? -The exit status of the last command executed. $0 -The filename of the current script. $# -The number of arguments supplied to a script. $$ -The process number of the current shell. For shell scripts, this is the process ID under which they are executing.

How do I run an executable file in Linux?

This can be done by doing the following:

  1. Open a terminal.
  2. Browse to the folder where the executable file is stored.
  3. Type the following command: for any . bin file: sudo chmod +x filename.bin. for any .run file: sudo chmod +x filename.run.
  4. When asked for, type the required password and press Enter.

How do I find the startup script in Linux?

A typical Linux system can be configured to boot into one of 5 different runlevels. During the boot process the init process looks in the /etc/inittab file to find the default runlevel. Having identified the runlevel it proceeds to execute the appropriate startup scripts located in the /etc/rc. d sub-directory.

How do I make a shell script run automatically?

You have several options to run the script on remote machine: copy the file on the remote machine in the same location with the same file name (with ftp or ssh you can do this with another script) and set the linux machine's cron job to execute that same file daily.

Where are the startup scripts in Linux?

local' file located in '/etc/' to execute our scripts and commands at startup. We will make an entry to execute the script in the file & every time when our system starts, the script will be executed. For CentOS, we use file '/etc/rc.

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