Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Problem with multiple grep in bash loop
Top Forums UNIX for Dummies Questions & Answers Problem with multiple grep in bash loop Post 302771879 by spacebar on Thursday 21st of February 2013 11:43:37 PM
Old 02-22-2013
If I understand what you want to do, You can do something like the below:

Code:
$ cat t
Sample1 Gene1   ##      Gene2   ##
Sample2 Gene2   ##      Gene4   ##
Sample3 Gene3   ##      Gene6   ##

$ cat test.sh
s="Sample1"
g1="Gene1"
g2="Gene2"
grep -q "$s[[:cntrl:]]$g1\|$s[[:cntrl:]][[:alnum:]]*[[:cntrl:]]##[[:cntrl:]]$g1" t
if [ $? = 0 ]; then
  echo "Found First" 
else
  echo "Not Found First"
fi
grep -q "$s[[:cntrl:]]$g2\|$s[[:cntrl:]][[:alnum:]]*[[:cntrl:]]##[[:cntrl:]]$g2" t
if [ $? = 0 ]; then
  echo "Found second"
else
  echo "Not Found second"
fi

$ test.sh
Found First
Found second

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Simple bash for loop problem

I'm just trying to make a script that runs in command line to echo each line in a text file. Everything i found on google is telling me to do it like this but when I run it it just echos removethese.txt and thats it. Anyone know what im doing wrong? for i in removethese.txt; do echo $i; done ... (4 Replies)
Discussion started by: kingdbag
4 Replies

2. Shell Programming and Scripting

Bash while loop problem

Hi, I'm having a problem with the while loop in bash. I try the following script: #!/bin/bash while true do echo "test" done When I try this, it gives me this error: while: Too few arguments. What am I doing wrong? Thanks (5 Replies)
Discussion started by: Kweekwom
5 Replies

3. Shell Programming and Scripting

problem with while loop in BASH shell

I have file named script1 as follows: #!/bin/bash count="0" echo "hello" echo "$count" while do echo "$count" count=`expr $count + 1` done ----------- when I run it, I get ./script1: line 9: syntax error near unexpected token `done' ./script1: line 9: `done' I... (6 Replies)
Discussion started by: npatwardhan
6 Replies

4. Shell Programming and Scripting

bash if loop for checking multiple parameters

Hello, I've got next problem: I want to examine at the beginning of a script in an if loop that: 1. Is there 4 parameters given 2. If first state is true then: is there switches -e and -d? 3. At the end, how can i indentify them as variebles regardlees to its order. I was thinking like... (2 Replies)
Discussion started by: szittyafergeteg
2 Replies

5. Shell Programming and Scripting

Problem with for loop in bash

I'm trying to do a script where I want to see if all users home directories are only writable by owner. However, in my script I do not know how to implement the for loop so that all directories are checked. In mine, I am only checking the permissions for the first directory found. I do know that a... (3 Replies)
Discussion started by: detatchedd
3 Replies

6. Shell Programming and Scripting

(BASH) Using a loop variable to grep something in a file?

Hi, I have a loop running until a variable L that is read previously in the full script. I'd like to grep some information in an input file at a line that contains the value of the loop parameter $i. I've tried to use grep, but the problem is nothing is written in the FILE files. It seems grep... (5 Replies)
Discussion started by: DMini
5 Replies

7. Shell Programming and Scripting

Detail on For loop for multiple file input and bash variable usage

Dear mentors, I just need little explanation regarding for loop to give input to awk script for file in `ls *.txt |sort -t"_" -k2n,2`; do awk script $file done which sorts file in order, and will input one after another file in order to awk script suppose if I have to input 2 or... (4 Replies)
Discussion started by: Akshay Hegde
4 Replies

8. UNIX for Dummies Questions & Answers

Problem using Grep for a loop

Dear All, I have problem with generalizing my code and I can't see where the problem is. I have a main.txt file that has all the information and then I have 4 folders (headoffice, branch, management, office) that each have a 2 of files keep.txt and throw.txt and each of them have few lines... (3 Replies)
Discussion started by: A-V
3 Replies

9. Shell Programming and Scripting

Loop through multiple files in bash script

Hi Everybody, I'm a newbie to shell scripting, and I'd appreciate some help. I have a bunch of .txt files that have some unwanted content. I want to remove lines 1-3 and 1028-1098. #!/bin/bash for '*.txt' in <path to folder> do sed '1,3 d' "$f"; sed '1028,1098 d' "$f"; done I... (2 Replies)
Discussion started by: BabyNuke
2 Replies

10. Shell Programming and Scripting

How to use grep in a loop using a bash script?

Dear all, Please help with the following. I have a file, let's call it data.txt, that has 3 columns and approx 700,000 lines, and looks like this: rs1234 A C rs1236 T G rs2345 G T Please use code tags as required by forum rules! I have a second file, called reference.txt,... (1 Reply)
Discussion started by: aberg
1 Replies

LEARN ABOUT DEBIAN

dpkg-www

DPKG-WWW(1)						      General Commands Manual						       DPKG-WWW(1)

NAME

       dpkg-www - program to remotely open a WWW Debian package browser

SYNOPSIS

       dpkg-www [-s|--stdout] [-h|--host host] [query]

DESCRIPTION

       dpkg-www is used to remotely control a WEB browser and open a dpkg URL on the local host from an interactive shell or script.

       If  the	command  is invoked while running under X-window the script will try to find an installed X browser to open the specified URL.	If
       not running under X it will try to use a text browser instead.

       If Netscape is found and a Netscape instance is already running it will be asked to open the dpkg URL on localhost with the optional  query
       supplied on the command line.  If there is no browser running, it will start automatically a new one.

       The  functionality  provided  by this program is identical to running a web browser with the -remote openURL(http://localhost/cgi-bin/dpkg)
       argument or opening the same URL from within the browser.

       dpkg-www-installer is an helper application which can configured in the WWW browser for	web  installation.  It	should	never  be  invoked
       directly by the user.

OPTIONS

       -s, --stdout
	      Redirect output to stdout. Requires one of the text browsers (lynx, lynx-ssl or links) installed.

       -h, --host host
	      Send the query to a remote host, where dpkg-www must be installed.

       query  Specifies  an  optional  package name, an absolute pathname or a query argument which is passed to the dpkg cgi-bin. See dpkg-www(8)
	      for more information about the use of the cgi.

FILES

       /etc/dpkg-www.conf

       ~/.dpkg-www
	      Configuration files for dpkg-www. It is not necessary for these files to exist, there are sensible defaults for everything, but  you
	      can specify your preferred www browser with the DPKG_WWW_BROWSER variable, for example: DPKG_WWW_BROWSER=mozilla

EXAMPLES

       dpkg-www
	      This would open a dpkg URL on localhost listing all the installed packages.

       dpkg-www bash
	      This would open a dpkg URL asking info on the bash package.

       dpkg-www -h pisolo bash
	      This would open a dpkg URL asking info on the bash package on host pisolo.

       dpkg-www 'dpkg*'
	      This would open a dpkg URL listing all packages matching dpkg*.

       dpkg-www /bin/bash
	      This would open a dpkg URL asking info on the package(s) owning the file /bin/bash .

       dpkg-www depends=svgalib
	      This would open a dpkg URL listing all packages depending on svgalib.

       dpkg-www --stdout depends=awk | grep ^ii
	      This would list on stdout all packages depending on awk and grep all lines of installed packages.

SEE ALSO

       dpkg(8), dpkg-www(8)

AUTHOR

       Massimo Dal Zotto <dz@debian.org>.
       Bugs should be reported via the normal Debian bug reporting system.

LICENCE

       dpkg-www is licensed under the GNU General Public License version 2.

								 September 1, 2004						       DPKG-WWW(1)
All times are GMT -4. The time now is 10:21 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy