Question

Log bash script output to screen and file

Asked by: TotallyMe

I have a bash script where I need all output (not input) logged and also shown on screen.

I'm using the following command to log to syslog: "logger -t script-name log message"

I know I'll need to use something like exec and possibly tee? but I can't work out the write combination.

And I need a solution that's inside the script itself, I can't modify the way the script is run but I can modify the content of the script.

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Asked On
2009-10-31 at 20:19:18ID24861412
Tags

bash syslog

Topics

Bourne-Again Shell (bash)

,

Bourne Shell (sh)

,

Unix Systems Programming

Participating Experts
1
Points
500
Comments
1

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Answers

 

by: TintinPosted on 2009-10-31 at 23:41:21ID: 25712816

You can use the following bash magic

#!/bin/bash
exec 3>&1 > >(tee -a file.log) 
main part of the script here 
exec 1>&3 3>&-

                                              
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