Run bash commands from txt file

Question

I have some commands in txt file and I need to execute all them line by line. How could I do it?

Answer 1

just change the extension of the file to .sh

add /bin/bash at starting of the file

change the permission of the file to executable

than simply run ./filename.sh command in command line. all the commands in the file will be executed

Answer 2

Change the extension to .sh and for the first line #!/usr/bin/env bash and as someone else said chmod +x

Answer 3

Just do bash file:

$ cat file 
date
echo '12*12' | bc

$ bash file
Mon Nov 26 15:34:00 GMT 2012
144

In case of aliases just run bash -i file

No need to worry about file extensions or execution rights.

Answer 4

In a Terminal just type:

bash path/to/my/file.txt

And you will get each lines executed.