at reminder script Post: 302561633

Sponsored Content

Homework and Emergencies Homework & Coursework Questions at reminder script Post 302561633 by Corona688 on Tuesday 4th of October 2011 04:23:26 PM

10-04-2011

Registered User

"$" variables are likely being substituted before the script is run, so $inputline never changes. You have to escape it with \.

This !! business is strange as well. On my system, that tells it to end the here document on 'man write', since that's the command I ran last.

Code:

at -k $TIME <<EOF
who | cut -c1-20 | grep $LOGNAME | cut -c12-20 | cat > ~/tmp
while read inputline
do
        write $LOGNAME \$inputline < ~/Msgs/message.$$ #|| mail \$inputline < ~/Msgs/message.$$
done < ~/tmp
rm -r ~/Msgs
rm -r ~/tmp
exit 0
EOF

That's a useless use of cat, by the way. Any command can be redirected to file, not just cat -- so leave off the cat and send your last cut into a file, cut -c12-20 > ~/tmp

That's also a useless use of a temp file. You can just feed cut's output directly into the while loop with no intervening file: a | b | c | while read LINE ; do stuff ; done

You never did redirect write's stderr to >dev/null like write ... 2>/dev/null to throw away the messages.

Show me what your who output looks like, and I'll find a more elegant way to get what you want than cut | grep | cut | cat, too.

Corona688

View Public Profile for Corona688

Visit Corona688's homepage!

Find all posts by Corona688

2 More Discussions You Might Find Interesting

1. Homework & Coursework Questions

Reminder script not working...

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: We have been tasked to write an at reminder script that will write or echo a message to more than one user. What...

2. OS X (Apple)

A simple reminder script for beginners to shell scripting.

(Apologies for any typos.) Well hands up those who have been in the following situation(s):- Your partner, (in my case the missus), sees that you are messing with your machine and says something like, "can you keep an eye on the dinner, I am going out shopping", and you look up glazed eyed...

LEARN ABOUT NETBSD

debconf-mergetemplate

DEBCONF-MERGETEMPLATE(1)					      Debconf						  DEBCONF-MERGETEMPLATE(1)

NAME

       debconf-mergetemplate - merge together multiple debconf template files

SYNOPSIS

	debconf-mergetemplate [options] [templates.ll ...] templates

DESCRIPTION

       Note: This utility is deprecated. You should switch to using po-debconf's po2debconf program.

       This program is useful if you have multiple debconf templates files which you want to merge together into one big file. All the specified
       files will be read in, merged, and output to standard output.

       This can be especially useful if you are dealing with translated template files. In this case, you might have your main template file, plus
       several other files provided by the translators. These files will have translated fields in them, and maybe the translators left in the
       english versions of the fields they translated, for their reference.

       So, you want to merge together all the translated templates files with your main templates file. Any fields that are unique to the
       translated files need to be added in to the correct templates, but any fields they have in common should be superseded by the fields in the
       main file (which might be more up-to-date).

       This program handles that case properly, just list each of the translated templates files, and then your main templates file last.

OPTIONS

       --outdated
	   Merge in even outdated translations. The default is to drop them with a warning message.

       --drop-old-templates
	   If a translation has an entire template that is not in the master file (and thus is probably an old template), drop that entire
	   template.

SEE ALSO

       debconf-getlang(1)

AUTHOR

       Joey Hess <joeyh@debian.org>

								    2012-09-10						  DEBCONF-MERGETEMPLATE(1)