I'm looking for a script I can run to check if a text file is empty, if it is then do nothing but if it has something in it, I want it to send me an email with the text file as the message. No idea how to do it.
views:
624answers:
5
A:
Something like this should work.
if [ `wc -l file.txt` -gt 0 ]; then
mail root@localhost < file.txt
fi
Jack Leow
2009-07-23 04:32:11
Interesting, but not very elegant compared with 'test -s' (usually spelled '[ -s ... ]').
Jonathan Leffler
2009-07-23 04:48:31
However, if you change wc -l to wc -w, then the file will not be emailed if it just contains whitespace, which could be nice.
Michael Mior
2009-07-23 05:33:22
Yeah, I should have gone with `test -s`. It's been a while since I've written shell scripts.
Jack Leow
2009-07-23 11:44:33
+1
A:
As a script
#!/bin/bash
file=file_to_check
if [ -s ${file} ] ; then
mail -s "The file is not empty!" [email protected] < $file
fi
Or in one line. (To put in a crontab)
[ -s file_to_check ] && mail -s 'File is not empty' [email protected] < file_to_check
jabbie
2009-07-23 04:33:01
PERFECT!I'll put it at the end of the script that generates the file so I wont need to estimate when the file will be there... just i just need it to send from a different email address lol but i'll read the man pages on mail and figure it out.
Hintswen
2009-07-23 04:43:32
The '-z' test checks whether the string (file name) is zero length, not whether the file is zero length.
Jonathan Leffler
2009-07-23 04:46:48
@Hintswen yep, it should be '-s' I should have manned test. That is what I get when I try to answer a question right before. Bed.
jabbie
2009-07-23 14:44:27
+4
A:
For example:
test -s your_file && mutt -a your_file -s "Sending you a file" [email protected]
This will send the file as attachment. If you want to include the file in the message body, you can use the -i switch instead of the -a. If you don’t have Mutt installed you can call mail:
test -s your_file && mail -s "Sending you a file" [email protected] < your_file
zoul
2009-07-23 04:33:28
A:
For sending email using bash check the following link http://rzdesign.free.fr/?p=26
Geos
2009-07-23 04:33:41
+2
A:
[ -s "$f" ] && mail [email protected] -s "$f contents" < $f
Nice and compact :)
Leigh Gordon
2009-07-23 05:23:57