Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Nested double quotes won't work in my bash script?
Top Forums Shell Programming and Scripting Nested double quotes won't work in my bash script? Post 302795919 by Corona688 on Thursday 18th of April 2013 03:20:05 PM
Old 04-18-2013
Quote:
Originally Posted by superbbrr
But I get nothing returned. It's just all blank.
You cannot quote quotes and expect the shell to unquote them for you. When you execute $LSCMD, it takes those quotes literally. Leave them out...

You might also be in for another surprise -- $LSCMD will still substitute wildcards -- everywhere, because quotes have no meaning inside it. So if you have a file named 'files2pkg' in the current directory, it can shove that in instead of files*pkg. You can turn this off with set -f, so try this:

Code:
LSCMD="find /project/media/ -mindepth 2 -maxdepth 2 -name files*pkg"

set -f # Prevent * from expanding when $LSCMD splits.
ALL_PACKAGES=$( $LSCMD | sort 2>/dev/null)
set +f # Turn * expansion back on

Another thing you could do is use a function instead of storing things in a string. You wouldn't need to do any special quoting of anything, it'd just be code as usual.

Code:
lscmd() {
        find /project/media -mindepth 2 -maxdepth 2 -name "files*pkg"
}

ALL_PACKAGES=$( lscmd | sort 2>/dev/null )

Last edited by Corona688; 04-18-2013 at 04:26 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

escaping double-quotes inside the script?

I'm having a strange problem with escaping double-quotes. I have a script that looks like this: #!/bin/bash for HOST in `cat $INFILE | grep -v ^#` do for VFILER in `some_command` do echo " " echo -e '\E The problem with ssh command... (3 Replies)
Discussion started by: GKnight
3 Replies

2. Shell Programming and Scripting

bash script won't execute (Mac)

I can't get any bash scripts to run in Terminal (Mac - Snow Leopard). I have the following super-simple script, and I can't get it to execute despite having the correct permissions (I think). #!/bin/bash echo "WORK... PLEASE?!" I named the file 'testScript.sh', and I added execution... (6 Replies)
Discussion started by: compulsiveguile
6 Replies

3. UNIX for Dummies Questions & Answers

A very simple script, but alias won't work

I am new to unix and therefore I did a lot of reading before posting. So please, if this has been answered before, forgive me for re-posting and point me to the right place for the answer. I have spent many hours searching the net and read over 50 posts in this forum and even tried a few thing but... (20 Replies)
Discussion started by: sssccc
20 Replies

4. UNIX for Dummies Questions & Answers

grep single quotes or double quotes

Unix superusers, I am new to unix but would like to learn more about grep. I am very familiar with regular expressions as i have used them for searching text files in windows based text editors. Since I am not very familiar with Unix, I dont understand when one should use GREP with the... (2 Replies)
Discussion started by: george_vandelet
2 Replies

5. Shell Programming and Scripting

How to count number of double quotes in bash

Need a little help. I have just a simple string with a lot double quotes in it. I need to be able to parse through this string, and know how many double quotes I have, and where I am, so I can key off every 9th double quote. For example (coding is not complete): #!/bin/bash count=0... (3 Replies)
Discussion started by: Akilleez
3 Replies

6. Shell Programming and Scripting

Complex bash/sed, variables and nested quotes

Ok, this one isn't for everybody, it's pretty tough and I've spent a good deal of time on it without figuring it out yet. Can anybody get this script to work: #!/bin/bash cq_fname="%let outputfile="/user/cq_"$1".csv";" sed "29s/.*/\"$cq_fname\"/" file1.sas >... (3 Replies)
Discussion started by: nocloud
3 Replies

7. Shell Programming and Scripting

Use double quotes as part of the string in a Bash array

So I need to create an array that has " in the string of the text: string = ( "value 1" "value2" where the actual string is "value1" with the quotations included would this work? string = ( \"value1\" \"value\") and if the strings contain spaces as well: string = ("\"this... (4 Replies)
Discussion started by: os2mac
4 Replies

8. Shell Programming and Scripting

Issue with Single Quotes and Double Quotes for prompt PS1

Hi, Trying to change the prompt. I have the following code. export PS1=' <${USER}@`hostname -s`>$ ' The hostname is not displayed <abc@`hostname -s`>$ uname -a AIX xyz 1 6 00F736154C00 <adcwl4h@`hostname -s`>$ If I use double quotes, then the hostname is printed properly but... (3 Replies)
Discussion started by: bobbygsk
3 Replies

9. Shell Programming and Scripting

Replace Double quotes within double quotes in a column with space while loading a CSV file

Hi All, I'm unable to load the data using sql loader where there are double quotes within the double quotes As these are optionally enclosed by double quotes. Sample Data : "221100",138.00,"D","0019/1477","44012075","49938","49938/15043000","Television - 22" Refurbished - Airwave","Supply... (6 Replies)
Discussion started by: mlavanya
6 Replies

10. UNIX for Beginners Questions & Answers

Bash script won't run because hardware won't produce display

Can anyone offer any advice on how to modify the script below to work on a new system we have, that has no graphics capability? We admin the system through a serial RAS device. I've tried running the below script through the RAS and through an ssh -X session. It failed with something like "GTK... (3 Replies)
Discussion started by: yelirt5
3 Replies

LEARN ABOUT DEBIAN

xsil2graphics

XSIL2GRAPHICS(1)					User Contributed Perl Documentation					  XSIL2GRAPHICS(1)

NAME

       xsil2graphics - generate scripts to load xsil output data files

SYNOPSIS

       xsil2graphics [options] <xsil_file>

DESCRIPTION

       Utility program bundled with xmds, used to generate scripts that load simulation output data into either matlab (http://www.mathworks.com)
       or scilab (http://www.scilab.org), which are then used to manipulate the results further if necessary and then to present the results
       graphically.

       Matlab

       To generate a matlab m-file, from the xsil file data_file.xsil use the command:

       bash$ xsil2graphics data_file.xsil

       or

       bash$ xsil2graphics --matlab data_file.xsil

       Then at the matlab command prompt:

       >> data_file

       Scilab

       To generate a scilab script file, from the xsil file data_file.xsil use the command:

       bash$ xsil2graphics --scilab data_file.xsil

       Then at the scilab command prompt:

       --> exec('data_file.sci')

OPTIONS

       -m, --matlab generate matlab m-file script to load data from the xsil data file (the default option)

       -s, -scilab generate scilab script file to load data from the xsil data file

       -o, --outfile <out_file> specify an alternative output script filename to the default which is the input xsil filename with the .xsil
       extension changed to either .m for the matlab m-file or .sci for the scilab script file

EXAMPLES

       bash$ xsil2graphics nlse.xsil

       Generates the output nlse.m to load the data into matlab

       bash$ xsil2graphics -m nlse.xsil

       Also generates the output nlse.m but explicitly sets matlab to be the output format

       bash$ xsil2graphics --scilab nlse.xsil

       Generates the output nlse.sci to load the data into scilab

       bash$ xsil2graphics --outfile nlse_new.m nlse.xsil

       Generates the output nlse_new.m to load the data into matlab

AUTHORS

       Originally written by Greg Collecutt

       Maintained by Paul Cochrane with code contributed by Joe Hope

BUGS

       No known bugs.

SEE ALSO

       xmds(1), loadxsil(1)

       http://www.xmds.org

COPYRIGHT

       Copyright (C) 2000-2004

       Code contributed by Greg Collecutt, Joseph Hope and Paul Cochrane

       This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
       the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

       This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MER-
       CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

       You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation,
       Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

perl v5.8.2							    2004-06-21							  XSIL2GRAPHICS(1)
All times are GMT -4. The time now is 11:47 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy