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Use double quotes instead of single quotes:

while read pattern; do grep "$pattern" first; done < second

Why doesn't the loop work? What output do you get and what are your inputs?

Try a loop:

while read pattern
do
agrep $pattern secondlist.txt
done < firstlist.txt

or

agrep -f firstlist.txt secondlist.txt

The -f option tells agrep to read patterns from the...

Looks ok to me.

You can find a complete shell script example here:
fahd.blog: Creating a Report with SQLPlus (http://fahdshariff.blogspot.com/2009/05/creating-report-with-sqlplus.html)

You will have to ask an administrator to restore the directory /var/spool/cron/crontabs from tape backup.

This is the reason why, in all my crontabs, I always have a daily backup script:

01 00...

To go to line 1:

1 Shift+G

To go to line n:

n Shift+G

To go to the last line:

Shift+G