Using $variables in grep Post: 302921612

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Using grep with variables

Being new to shell scripting I hope this question isn't too elementary but here goes. I run a grep statement - grep 'sqr' sqrmodule.par and the grep statement returns correctly the information that I'm looking for. Now I want to take the output from the grep statement and load it into a...

2. Shell Programming and Scripting

awk as grep with variables

i have such awk working fine but how to use variable instead of strings awk '/asdasd.*asda.*asdasd/' file2.txt This is not working: awk '/${a}.*${b}.*${c}/' file2.txt Thanks & regards Peter

3. Shell Programming and Scripting

How to use variables/array in grep command

Hi, I have a reqmt as i have some values in array and I want to search each value in a file by grep command. Here goes my scripting: #!/bin/ksh set -A ArrayA CENTER LEFT RIGHT echo "ArrayA contains: ${ArrayA�*�}" grep -e "${ArrayA�*�}" filename.txt The above grep is working for...

4. Programming

Grep with C variables.

Hi all, I have a problem, I need a grep -v but, the patterns of the grep should be C variables. Example: char var1="h"; char var2="o"; char var3="d"; system("grep -v \"var1 var2 var3\" file.txt"); ---- ---- ---- I try it but... Can u help me? Thanks beforehand P.S. Sorry for...

5. Shell Programming and Scripting

grep variables nested within grep

Help, I have a ksh script that has some variables within the grep command, I am then setting another variable that greps the variables that have greps within them. cat $WORKINGDIR/meter_list.txt | while read meter do serialnum=$(cat masterlogfile.txt | grep "$meter" | awk '{ print $19 }'...

6. Shell Programming and Scripting

Print lines where variables occur more than once using grep

Hello, I want to only print lines where variables occur more than once using grep. For eg: Input: $this is a comment int a,b,c,b; int b,c; int d,e; int f,g,f; x=y+5; For the above input, the output would be int a,b,c,b; int f,g,f; I have done grep...

7. Shell Programming and Scripting

grep and variables ?

I would like to know if grep can extract the following requirement. I have the folllowing piece of SQL in a file and need to grep the FROM part. mp db-ter-fast-export C100_Input_Target_Table__table_ "${DB}"'/teradata.dbc' -select 'SELECT UPPER(trim(proj_id)) as proj_id, latest_job_id,...

8. Shell Programming and Scripting

Using awk or grep with Variables in a script

Good day Geeks, Am having an issue with using variables in a rather simple script, the script is as follows: #!/bin/bash ### Script written by Adigun Gbenga ### Date: April 28, 2012 array=( 1 2 3 4 5 29 7 8 9...

9. Shell Programming and Scripting

[Help] Grep, Variables, IF statements... Fun

Hello, this will be my first post. I've been browsing around for a bit and have found a lot of useful information on here, hopefully a solution can be provided to me. Issue: Alright, I am looking to search for strings within a file using variables. I have a script that will accept 3 or 4...

10. Homework & Coursework Questions

Grep, Variables, IF statements... Fun

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: The issue I am having is part of a validation problem. My script will validate 3 or 4 parameters entered by the...

LEARN ABOUT LINUX

xzegrep

XZGREP(1)							     XZ Utils								 XZGREP(1)

NAME

       xzgrep - search compressed files for a regular expression

SYNOPSIS

       xzgrep [grep_options] [-e] pattern file...
       xzegrep ...
       xzfgrep ...
       lzgrep ...
       lzegrep ...
       lzfgrep ...

DESCRIPTION

       xzgrep  invokes	grep(1)  on  files  which may be either uncompressed or compressed with xz(1), lzma(1), gzip(1), or bzip2(1).  All options
       specified are passed directly to grep(1).

       If no file is specified, then standard input is decompressed if necessary and fed to grep(1).  When reading from  standard  input,  gzip(1)
       and bzip2(1) compressed files are not supported.

       If  xzgrep  is  invoked as xzegrep or xzfgrep then egrep(1) or fgrep(1) is used instead of grep(1).  The same applies to names lzgrep, lze-
       grep, and lzfgrep, which are provided for backward compatibility with LZMA Utils.

ENVIRONMENT

       GREP   If the GREP environment variable is set, xzgrep uses it instead of grep(1), egrep(1), or fgrep(1).

SEE ALSO

       grep(1), xz(1), gzip(1), bzip2(1), zgrep(1)

Tukaani 							    2010-09-27								 XZGREP(1)