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Full Discussion: grep a variable
Top Forums Shell Programming and Scripting grep a variable Post 302242357 by sgstuart on Wednesday 1st of October 2008 06:56:54 PM
Old 10-01-2008
grep a variable

Hi all,
I am trying to do a simple thing in my mind. However I am fairly new to bash. What I need to do is create a folder for each partition on each CD, and each partition has a unique name (with spaces in it, do not ask why, it is already done Smilie ) . All CD's will show up under disk1s. So what I have done is create a script that will grab the name, assuming that there is only 1 partition (which I never knew anyone would create partitions on a CD).

So my script write now is

if [-z `diskutil list | grep disk1s0 | awk '{print$3}' ] ; then
Name = `diskutil list | grep disk1s1s2 | awk '{print$3}'
T1 = "Mass"
if[$T1 = $Name]; then
echo `diskutil list | grep disk1s1s2 | awk '{print$3 " " $4}'
else
echo `diskutil list | grep disk1s1s2 | awk '{print$3}'
fi
else
echo `diskutil list | grep disk1s0 | awk '{print$3}'
fi


what I need to add is if the disk1s1s2 name starts with Mass is I need it to look at the name of possibily multiple partitions
echo `diskutil list | grep disk1s1s2 | awk '{print$3 " " $4}'
echo `diskutil list | grep disk1s2s2 | awk '{print$3 " " $4}'
echo `diskutil list | grep disk1s3s2 | awk '{print$3 " " $4}'
echo `diskutil list | grep disk1s4s2 | awk '{print$3 " " $4}'
echo `diskutil list | grep disk1s5s2 | awk '{print$3 " " $4}'
and so on, I have seen at least 10, but there could be more, and could be less.
How would I script for this? Any help would be great.

Thanks,
Steven Stuart
 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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