How do I execute a bash script in Terminal

Question

I have a bash script like      bin bash  echo Hello world    How do I execute this in Terminal

User · Answer

You could do  sh scriptname sh

User · Answer

This is an old thread  but I happened across it and I m surprised nobody has put up a complete answer yet  So here goes     The Executing a Command Line Script Tutorial   Q  How do I execute this in Terminal   Confusions and Conflicts    You do not need an  extension   like  sh or  py or anything else   but it helps to keep track of things  It won t hurt  If the script name contains an extension  however  you must use it  You do not need to be in any certain directory at all for any reason   You do not need to type out the name of the program that runs the file  BASH or Python or whatever  unless you want to  It won t hurt   You do not need sudo to do any of this  This command is reserved for running commands as another user or a  root   administrator  user  Great post here     A person who is just learning how to execute scripts should not be using this command unless there is a real need  like installing a new program  A good place to put your scripts is in your   bin folder  You can get there by typing cd   bin or cd  HOME bin from the terminal prompt  You will have full permissions in that folder       To  execute this script  from the terminal on a Unix Linux type system  you have to do three things     Tell the system the location of the script   pick one    Type the full path with the script name  e g   path to script sh   You can verify the full path by typing pwd or echo  PWD in the terminal  Execute from the same directory and use    for the path  e g    script sh   Easy  Place the script in a directory that is on the system PATH and just type the name  e g  script sh   You can verify the system PATH by typing echo  PATH or echo -e   PATH      n  if you want a neater list   Tell the system that the script has permission to execute   pick one     Set the  execute bit  by typing chmod  x  path to script sh in the terminal  You can also use chmod 755  path to script sh if you prefer numbers  There is a great discussion with a cool chart here   Tell the system the type of script   pick one    Type the name of the program before the script   e g  BASH  path to script sh or PHP  path to script php  If the script has an extension  such as  php or  py  it is part of the script name and you must include it  Use a shebang  which I see you have     bin bash  in your example  If you have that as the first line of your script  the system will use that program to execute the script  No need for typing programs or using extensions   Use a  portable  shebang  You can also have the system choose the version of the program that is first in the PATH by using    usr bin env followed by the program name  e g     usr bin env bash or    usr bin env python3   There are pros and cons as thoroughly discussed here

User · Answer

Yet another way to execute it  this time without setting execute permissions    bash  path to scriptname

User · Answer

Firstly you have to make it executable using  chmod  x name of your file script    After you made it executable  you can run it using   same name of your file script

User · Answer

prompt   path to script and hit enter  Note you need to make sure the script has execute permissions

User · Answer

Change your directory to where script is located by using cd command  Then type  bash program-name sh

User · Answer

cd to the directory that contains the script  or put it in a bin folder that is in your  PATH  then type    scriptname sh   if in the same directory or  scriptname sh   if it s in the bin folder

User · Answer

If you are in a directory or folder where the script file is available then simply change the file permission in executable mode by doing    chmod  x your filename sh  After that you will run the script by using the following command     sudo   your filename sh  Above the     represent the current directory  Note        If you are not in the directory where the bash script file is present then you change the directory where the file is located by using   cd Directory name write the complete path  command  Otherwise your script can not run

User · Answer

And yet one more way     path to script   What is the meaning of the dot

[bash] How do I execute a bash script in Terminal?

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