Extract a line from a file.


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Extract a line from a file.
# 1  
Old 01-22-2010
Extract a line from a file.

How to extract a line from a given file example,
code:
a=10;
b=20;
CI:something.
gdgjihndsjdbdvcdhsfh
dhaidjwauhdd
dhasjdasndsadsd
asdhuwyesdbsadhsad
adhasjdasytywnasndahhahdjash
/code
I want to extract "CI:something.", and something may be anything, it may be x or y or z or anything. And it may be in any line.
Can any one please help me...


Thanks.

Last edited by anupdas; 01-22-2010 at 02:35 AM..
# 2  
Old 01-22-2010
cat xxx.txt | head -3| tail -1
# 3  
Old 01-22-2010
Code:
sed -n '3p' urfile
awk 'NR==3' urfile

# 4  
Old 01-22-2010
Actually it is confirm that it is in line number three, it may be in any where, i just give one example.
# 5  
Old 01-22-2010
grep 'CI:Anup Das' file
# 6  
Old 01-22-2010
Code:
 sed -n '/CI:*/p' urfile

# 7  
Old 01-22-2010
Thanks everyone....
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl to extract information from a file line by line

In the below perl code I am using tags within each line to extract certain information. The tags that are used are: STB >0.8 is STRAND BIAS otherwise GOOD FDP is the second number GO towards the end of the line is read into an array and the value returned is outputed, in the first line that... (1 Reply)
Discussion started by: cmccabe
1 Replies

2. Shell Programming and Scripting

HELP: Shell Script to read a Log file line by line and extract Info based on KEYWORDS matching

I have a LOG file which looks like this Import started at: Mon Jul 23 02:13:01 EDT 2012 Initialization completed in 2.146 seconds. -------------------------------------------------------------------------------- -- Import summary for Import item: PolicyInformation... (8 Replies)
Discussion started by: biztank
8 Replies

3. Shell Programming and Scripting

extract a line from a file by line number

Hi guys, does anyone know how to extract(grep) a line from the file, if I know the line number? Thanks a lot. (9 Replies)
Discussion started by: aoussenko
9 Replies

4. Shell Programming and Scripting

get the fifth line of a text file into a shell script and trim the line to extract a WORD

FOLKS , i have a text file that is generated automatically of an another korn shell script, i want to bring in the fifth line of the text file in to my korn shell script and look for a particular word in the line . Can you all share some thoughts on this one. thanks... Venu (3 Replies)
Discussion started by: venu
3 Replies

5. Shell Programming and Scripting

extract line by line from file

hi dudes, I have a text file in the below format 1 s sanity /u02 2 r script1 /u02 3 s sanity /u02 Please tell me a script to read this file line by line, I wrote the below script , but it is printing only 1st line not printing rest... (7 Replies)
Discussion started by: shirdi
7 Replies

6. Shell Programming and Scripting

File Line Extract

If i have a file, how do i create a new file with say line x to y from the file i have. Eg. File1 has 100 line, i want File2 to have line 50-60 from File1 (4 Replies)
Discussion started by: kelseyh
4 Replies

7. Shell Programming and Scripting

extract a line from a file using the line number

Hello, I am having trouble extracting a specific line from a file when the line number is known. My first attempt involved grep -n 'hi' (the word 'hi will always be there) to get the line number before the line that I actually want (line 4). Extra Notes: -I am working in a bash script. -The... (7 Replies)
Discussion started by: grandtheftander
7 Replies

8. Shell Programming and Scripting

Extract a line from a file using the line number

I have a shell script and want to assign a value to a variable. The value is the line exctrated from a file using the line number. The line number it is not fix, and could change any time. I have tried sed, awk, head .. See my script # Get randome line number from the file #selectedline = `awk... (1 Reply)
Discussion started by: zambo
1 Replies

9. UNIX for Advanced & Expert Users

Extract line from file

Dear Members! How can I extract on line from a file? (1 Reply)
Discussion started by: kingkong
1 Replies

10. UNIX for Advanced & Expert Users

Extract line from file

Hello, guys! I want to extract one specific line from a file. Can someone help me with this? (2 Replies)
Discussion started by: kingkong
2 Replies
Login or Register to Ask a Question