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Top Forums Shell Programming and Scripting Parse output path to set variable Post 302737263 by es760 on Wednesday 28th of November 2012 03:27:42 PM
Old 11-28-2012
Parse output path to set variable

I am looking to parse a text file output and set variables based on what is cropped from the parsing.

Below is my script I am looking to add this feature too.
All it does is scan a certain area of users directories for anyone using up more than X amount of disk space. It then writes to the output file and emails the output file when done to a number of people that is defined in the script.
I want it to also email the username found in the output file.
Below the script is a sample output of what is emailed.


Code:
#!/bin/bash
_dufile="/tmp/testing-results.log"
MAILTO=myname@mydomain.com

rm -rf /tmp/testing-results.log

du -m -s /home/project_A/users/* | perl -ne '@l = split();print "@l\n" if $l[0]>=1960' > /tmp/testing-results.log

if [ -s "$_dufile" ]
then
        echo "$_dufile has found user with over allowed data amount, emailing "
        cat /tmp/testing-results.log | mailx -s " Testing user exceeded 2GB limit Quota Notification" $MAILTO
else
        echo "$_dufile is empty."
fi

--------------------------
output file data in /tmp/testing-results.log :
Code:
39292 /home/project_A/users/jdoe
49200 /home/project_A/users/bsmith
89019 /home/project_A/users/rguy


Basically, I need to read the output of /tmp/testing-results seen above, and crop out everything except the username "jdoe" and "bsmith" and "rguy" and set each one to a variable. Then just plugging in those variables to my mailx list with a domain name added.

This will then send the output to myname@mydomain, and also the output sent to each person/user "jdoe" "bsmith" ect...

I'm sure there are a million ways of doing this and would highly appreciate any suggestions of the read and parse of my output file /tmp/testing-results


Thanks in advance.

Last edited by Scott; 11-29-2012 at 12:12 AM.. Reason: Code tags, please
 

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UNBUFFER(1)						      General Commands Manual						       UNBUFFER(1)

NAME
unbuffer - unbuffer output SYNOPSIS
unbuffer program [ args ] INTRODUCTION
unbuffer disables the output buffering that occurs when program output is redirected from non-interactive programs. For example, suppose you are watching the output from a fifo by running it through od and then more. od -c /tmp/fifo | more You will not see anything until a full page of output has been produced. You can disable this automatic buffering as follows: unbuffer od -c /tmp/fifo | more Normally, unbuffer does not read from stdin. This simplifies use of unbuffer in some situations. To use unbuffer in a pipeline, use the -p flag. Example: process1 | unbuffer -p process2 | process3 CAVEATS
unbuffer -p may appear to work incorrectly if a process feeding input to unbuffer exits. Consider: process1 | unbuffer -p process2 | process3 If process1 exits, process2 may not yet have finished. It is impossible for unbuffer to know long to wait for process2 and process2 may not ever finish, for example, if it is a filter. For expediency, unbuffer simply exits when it encounters an EOF from either its input or process2. In order to have a version of unbuffer that worked in all situations, an oracle would be necessary. If you want an application-specific solution, workarounds or hand-coded Expect may be more suitable. For example, the following example shows how to allow grep to finish pro- cessing when the cat before it finishes first. Using cat to feed grep would never require unbuffer in real life. It is merely a place- holder for some imaginary process that may or may not finish. Similarly, the final cat at the end of the pipeline is also a placeholder for another process. $ cat /tmp/abcdef.log | grep abc | cat abcdef xxxabc defxxx $ cat /tmp/abcdef.log | unbuffer grep abc | cat $ (cat /tmp/abcdef.log ; sleep 1) | unbuffer grep abc | cat abcdef xxxabc defxxx $ BUGS
The man page is longer than the program. SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995. AUTHOR
Don Libes, National Institute of Standards and Technology 1 June 1994 UNBUFFER(1)
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