Shell Script with e-mail...

Posted on 2000-03-08
Last Modified: 2011-09-20
I'm new to shell scripting, so please bear with me.  All that I want to do is cat a file that is known to either contain OK or FAIL, and if FAIL read a line from another file (grep for DEAD on that), and then (still if FAIL) take this second file's line and e-mail it.

I must assume that this would be "fairly" straightforward to someone who knows shell scripting.  Thanks!
Question by:Nietzsche
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Expert Comment

ID: 2598997
assume file1 and file2, in a regular unix, linux, enviromenta

# /bin/sh

# backtick here, not single quote
status=`cat file1`

if [ "EMPTY$status" = "EMPTY" ]
    echo "nothing in file1????"
    exit 1

if [ ${status} = "FAIL" ]
  grep "DEAD" file2 | mail -s "line from file2 when FAIL in file1" 2>/dev/null
exit 0

Author Comment

ID: 2601919
When I run this (named runthis), I get the following:

../runthis:[EMPTYcat file1: command not found

../runthis:[cat: command not found

Any suggestions?

Author Comment

ID: 2601926
..that was with no whitespace between the brackets and their contents ... if I put a space there, then I get
../runthis: [: too many arguments.
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Accepted Solution

jyu_88 earned 75 total points
ID: 2605444
# backtick here, not single quote
status=`cat file1`

are you sure you have backtick not single quote there?   FYI, backtick is the one sharing the same key with ~.

I've run the exact program on my Linux box without problem. So, I don't expect problem. Ruh, sorry, the first line should read like
#! /bin/sh
instead of
# /bin/sh

Expert Comment

ID: 2618647
grep -q FAIL file1 && grep DEAD file2 | mail -s "DEAD in file2" nietzsche

Author Comment

ID: 2620690
Adjusted points from 50 to 75

Author Comment

ID: 2620691
EXCELLENT!  As you said before, the "`" is indeed a backtick.  It's running beautifully - I'm using it to cat out /dev/rd/current_status and report back to me if any RAID drive shows up as "DEAD" - like: /dev/sda2  DEAD
Thanks for your help and patience!

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