¿Cómo habilito el script de shell en Linux?

How do I enable shell script in Linux?

How do I run . sh file shell script in Linux?

1. Open the Terminal application on Linux or Unix.
2. Create a new script file with .sh extension using a text editor.
3. Write the script file using nano script-name-here.sh.
4. Set execute permission on your script using chmod command : chmod +x script-name-here.sh.
5. To run your script :

In short, look for the following to fix “ bash: bashtop: command not found “:

1. Make sure the shell PATH variable correctly set and verify your PATH environment variable.
2. Verify that the file you want to execute or run exists on the Unix or Linux box.
3. Some commands need to run as the superuser (root user).

Bash shell offers debugging options which can be turn on or off using the set command:

1. set -x : Display commands and their arguments as they are executed.
2. set -v : Display shell input lines as they are read.

Keep in mind that it needs to be a shell script that you pass as argument. A shell script is composed of commands. If you use a normal text file, it will complain about incorrect commands. In this approach, you explicitly specified that you want to use bash as the interpreter for the script.

By the way, the hapless system administrator’s script suffered this very failure and it destroyed a large portion of an important production system. Don’t let this happen to you! The problem with the script was that it did not check the exit status of the cd command before proceeding with the rm command.

(Edited to use the more invulnerable printf instead of the problematic echo that might act on escape sequences in the text.) Use set -e to set exit-on-error mode: if a simple command returns a nonzero status (indicating failure), the shell exits.

Unix/Linux FAQ: How do I solve the problem of the shell script “bad interpreter” error message? Sometimes when you take a file from a DOS/Windows system and move it to a Linux or Unix system you’ll have problems with the dreaded ^M character. This happened recently when I moved an Ant script from a Windows system to my Mac OS X system.