How to grep this pattern??


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting How to grep this pattern??
# 1  
Old 02-19-2008
How to grep this pattern??

Hi All,
I have a file like this, from this file I want to grep only this "package com.att.com;".... even though spaces are present at starting of the line.

i.e., the o/p should ignore these two lines from the file :

[space] [space] asdasdasd package ; ignore this line
[space] asdasdasd adsfkl90-9-0 package c.com; ignore this line also


Here it is the file content :
------------------------
package com.att.com;
[space] package com.att.com;
[double space] package com.att.com;
[space] package com.att.com;
[space] [space] package com.att.com;

package com.att.com;

package com.att.com;
package com.att.com;
package com.att.com;

[space] [space] asdasdasd package ; ignore this line
[space] asdasdasd adsfkl90-9-0 package c.com; ignore this line also

package com.att.com;
------------------------
thanks,
saravana

Last edited by askumarece; 02-19-2008 at 02:22 PM..
# 2  
Old 02-19-2008
I must be missing something:
Code:
grep 'package com.att.com;' file

does what you ask? It will find 'package com.att.com;' anywhere in the line of text.
# 3  
Old 02-19-2008
Quote:
Originally Posted by jim mcnamara
I must be missing something:
Code:
grep 'package com.att.com;' file

does what you ask? It will find 'package com.att.com;' anywhere in the line of text.
Jim,
But it will miss the lines which are having spaces b4 "package com.att.com;" I need to grep that also.....

Last edited by askumarece; 02-19-2008 at 02:26 PM..
# 4  
Old 02-19-2008
I think you just need to add the "beginning of a line" character to only grep the lines that have no spaces before them.

grep '^package com.att.com;' file

Works in Solaris.

Your wording is a little confusing... normally when grep is used as a verb, at least in my experience, it means "get the lines that include". So if I want to find the lines in a dcoument that has the word foo them, I say "I want to grep for foo"

So... do you want to grep for the lines w/ spaces before the words or only those without spaces before the words?

Do include in the output the lines w/ spaces before, use the first example provided by Jim. If you want to exclude the lines w/ spaces before the text from your output, use the one I provided.

Cheers.
# 5  
Old 02-19-2008
I want to grep for the lines w/ spaces before the words. Can you give me the grep command for this?
# 6  
Old 02-19-2008
Code:
# one space in front of it anywhere on the line
grep ' package com.att.com;' file
# one or more white spaces
grep '[ \t]*package com.att.com;' file
# at the beginning of the line
grep '^ package com.att.com;' file
# one or more spaces at the beginning
grep '^[ \t]*package com.att.com;' file
# one or more spaces where it is at the end of the line
grep '[ \t]*package com.att.com;$' file

You need to be ultra-specific in asking for what you want.
This User Gave Thanks to jim mcnamara For This Post:
# 7  
Old 02-19-2008
jim,
thanks a lot.... sorry for making u in confusion....
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Grep/awk using a begin search pattern and end search pattern

I have this fileA TEST FILE ABC this file contains ABC; TEST FILE DGHT this file contains DGHT; TEST FILE 123 this file contains ABC, this file contains DEF, this file contains XYZ, this file contains KLM ; I want to have a fileZ that has only (begin search pattern for will be... (2 Replies)
Discussion started by: vbabz
2 Replies

2. UNIX for Dummies Questions & Answers

Grep -v lines starting with pattern 1 and not matching pattern 2

Hi all! Thanks for taking the time to view this! I want to grep out all lines of a file that starts with pattern 1 but also does not match with the second pattern. Example: Drink a soda Eat a banana Eat multiple bananas Drink an apple juice Eat an apple Eat multiple apples I... (8 Replies)
Discussion started by: demmel
8 Replies

3. Shell Programming and Scripting

Grep lines before a pattern having some other pattern

Hi All, I am trying to fetch lines before a pattern, I got to know about -B flag in grep but we have to pass the number to get those lines before some pattern say (X), now what if I want to get line/s with some other pattern say (Y) before X pattern? How to get about it? please help. Input:... (5 Replies)
Discussion started by: dips_ag
5 Replies

4. Shell Programming and Scripting

sed and awk usage to grep a pattern 1 and with reference to this grep a pattern 2 and pattern 3

Hi , I have a file where i have modifed certain things compared to original file . The difference of the original file and modified file is as follows. # diff mir_lex.c.modified mir_lex.c.orig 3209c3209 < if(yy_current_buffer -> yy_is_our_buffer == 0) { --- >... (5 Replies)
Discussion started by: breezevinay
5 Replies

5. Shell Programming and Scripting

How to Grep than scan line below grep pattern

Hello Colleagues, I have a file that looks like below. 6-12731913-12731913 9230760143480 410018547148230 20131002193434+0500 20131002193434+0500 ;20131002T161031000-10.50.241.21-21912131-1419034760, ver: 0 20131009 92220056296730 CC0P abc Core_Context_R1A SMS 6-12726796-12726796... (14 Replies)
Discussion started by: umarsatti
14 Replies

6. Shell Programming and Scripting

Grep the word from pattern line and update in subsequent lines till next pattern line reached

Hi, I have got the below requirement. please suggest. I have a file like, Processing Item is: /data/ing/cfg2/abc.txt /data/ing/cfg3/bgc.txt Processing Item is: /data/cmd/for2/ght.txt /data/kernal/config.klgt.txt I want to process the above file to get the output file like, ... (5 Replies)
Discussion started by: rbalaj16
5 Replies

7. Emergency UNIX and Linux Support

Grep pattern

I have to search from millions of lines of code of lines having following pattern: get_token , get_token For example: fn1(string.get_token(), string1.get_token()); Thanks in advance (5 Replies)
Discussion started by: uunniixx
5 Replies

8. Shell Programming and Scripting

Want to grep for a pattern and display the content above that pattern

Hi, When we have a failure, sometimes we just step restart the job from the next step. Later when we open the log for analysis of the failure, it is becoming difficult to go to the failure part. For eg., if it is a 1000 line log, the failure may be at 500th line. so wat i want to do is, grep... (6 Replies)
Discussion started by: ajayakunuri
6 Replies

9. Shell Programming and Scripting

how to grep certain pattern

-Hi I have a file with the following entries: tschkback12 tschkback11 tschkback15 tschkback28 ....etc. I need to grep all the lines out of this file which end with the number (just "tschkback" should be excluded). Can it be done with one line command? Thanks -A (5 Replies)
Discussion started by: aoussenko
5 Replies

10. Shell Programming and Scripting

how to grep the pattern ?

how to grep the pattern ? How can I grep or find the pattern from this files in the directory. I have couple of ascii files too.I have to grep the binary files.Please assist me Thanks Francis (2 Replies)
Discussion started by: faviji
2 Replies
Login or Register to Ask a Question