I have a shell script named remote_execution.sh. Is it possible that I just type remote_execution in any of the folders and the execution starts, just like gcc, vi or any such command does?
Thanks in advance.
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surely this has to be a dupe?poolie– poolie2012-03-09 06:34:16 +00:00Commented Mar 9, 2012 at 6:34
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This doesn't really deserve to be an answer, but you could make a directory especially for your scripts and add that directory to your $PATH. Google "add directory to $PATH" for info on that.CoffeeRain– CoffeeRain2012-03-09 22:27:25 +00:00Commented Mar 9, 2012 at 22:27
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7 Answers
The following four steps should allow you to run remote_execution from anywhere in your filesystem:
- Rename the file to
remote_execution, removing the.shextension Add a "shebang" line to the top of the file
#!/bin/bashModify the permissions of the file so it is executable (see
man chmod)chmod u+x remote_executionMove the file into a directory in your
PATHso it "works in any folder". At a guess:mv remote_execution /usr/local/bin
2 Comments
user unknown
How do you know that this is a bash script? How do you know it is missing a shebang? That it isn't already executable? That it is not in the PATH? Shouldn't he need to do a
sudo mv remote_execution /usr/local/bin to write to /usr/local/bin?
user229044
@userunknown It's called probability. Assumptions were made, and they were safe assumptions.
Another option is set an alias
alias remote_execution="fullpath to remote_execution.sh"
Comments
You could put that script in any folder depicted by $PATH
$ echo $PATH
[andreas@nyert test]$ echo $PATH
/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/home/andreas/bin
rename your script to remote_execution and put #!/bin/sh in the first line. Also chmod it to make sure it's executable
$ chmod 755 remote_execution
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add the directory in which remote_execution.sh is located to your $PATH variable. Also if you want it to be launched without the ending .sh, rename the script to remote_execution
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You have 3 ways: you either copy the script in one of the directories found in PATH or create a symlink for the script there (ln -s) or add the current directory of the shell script to the PATH (export PATH=$PATH:dir).
To find out what PATH looks like do a echo $PATH.
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Yes. You have two options, put the script somewhere on your path, or append the script's directory to your path in your ~/.profile.
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Each file has it's own permission bits. You have to modify the permissions of the file so it is executable. So use command -
chmod +x remote_execution
Hoping you have added "shebang" line to the top of the file
#!/bin/bash
If you call the script with an explicit interpreter, like
bash remote_execution.sh
/bin/bash remote_execution.sh
dash remote_execution.sh
sh remote_execution.sh
your choosen interpreter is used, no matter what the shebang says, which is just a comment. Otherwise the kernel looks for the shebang and starts the program with the therein specified interpreter. If Shebang character is used then no matter what extension is !
Your shell is a program. It has variables, one of them is $ PATH
$PATH contains A colon-separated list of directories to search for commands
If you want to see it just type $ echo $PATH in terminal.
On my computer it shows
vikram@vikram-Studio-XPS-1645:~$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
This means if I type command like gcc or vim it searches in above directory list.
Now just copy your shell script to any of above folder to access it from anywhere.
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