在文件夹中执行随机脚本

Question

I need to run a random script in a folder. I can use 'ls -1 /home/sepinto/EML-Samples/scripts/regular | sort -R | head -1' to get a random file name but how can I execute it?

Thanks

I can use 'ls -1 /home/sepinto/EML-Samples/scripts/regular | sort -R | head -1' to get a random file name but how can I execute it?

Answer 1

It depends on the shell you are using. I will assume your shell is bash or sh and the scripts are already executable.

Then all you need to do is enclose your command line above in backticks . Everything you type between backticks is evaluated (executed) by the shell and then replaced by the command's output.

`ls -1 /home/sepinto/EML-Samples/scripts/regular | sort -R | head -1`

Edit:
Turns out that the path is stripped if ls -1 is piped into another command.
A solution is to store the path in a variable so you can use it twice:

d="/home/sepinto/EML-Samples/scripts/regular"; $d/`ls -1 $d/ | sort -R | head -1`

Answer 2

First, change your ls command to list the files with complete path, then just execute them either directly with backticks or storing them in a variable.

SCRIPTNAME=`ls -1 /home/sepinto/EML-Samples/scripts/regular/*.sh | sort -R | head -1`
echo "Executing $SCRIPTNAME"
"$SCRIPTNAME"

The above assumes that all your files have a.sh ending, change the ls argument if this is not the case.