Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Extract n number of lines from a file successively Post 302503113 by Gussifinknottle on Wednesday 9th of March 2011 05:04:55 PM
Old 03-09-2011
Thank you drl!

~Guss
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

extract a number within an xml file

Hi Everyone, I have an sh script that I am working on and I have run into a little snag that I am hoping someone here can assist me with. I am using wget to retrieve an xml file from thetvdb.com. This part works ok but what I need to be able to do is extract the series ID # from the xml and put... (10 Replies)
Discussion started by: tret
10 Replies

2. Shell Programming and Scripting

extract the lines between specific line number from a text file

Hi I want to extract certain text between two line numbers like 23234234324 and 54446655567567 How do I do this with a simple sed or awk command? Thank you. ---------- Post updated at 06:16 PM ---------- Previous update was at 05:55 PM ---------- found it: sed -n '#1,#2p'... (1 Reply)
Discussion started by: return_user
1 Replies

3. Shell Programming and Scripting

Number lines of file and assign variable to each number

I have a file with a list of config files numbered on the lefthand side 1-300. I need to have bash read each lines number and assign it to a variable so it can be chosen by the user called by the script later. Ex. 1 some data 2 something else 3 more stuff which number do you... (1 Reply)
Discussion started by: glev2005
1 Replies

4. Shell Programming and Scripting

extract number range from a file

Hi Everyone, a.txt 1272904667;1272904737;1 1272904747;1272904819;1 1272904810;1272904857;1 1272904889;1272904926;1 1272905399;1272905406;1 1272905411;1272905422;1 if i want to get the record, when the a.txt 1st field is between 1272904749 and 1272905399, any simple way by using awk,... (1 Reply)
Discussion started by: jimmy_y
1 Replies

5. Shell Programming and Scripting

Awk to extract lines with a defined number of characters

This is my problem, my file (file A) contains the following information: Now, I would like to create a file (file B) containing only the lines with 10 or more characters but less than 20 with their corresponding ID: Then, I need to compare the entries and determine their frequency. Thus, I... (7 Replies)
Discussion started by: Xterra
7 Replies

6. Emergency UNIX and Linux Support

Urgent help pls.how to extract two lines having same starting number

Hi , I have a huge file like this =245 this is testing =035 abc123 =245 this is testing1 =035 abc124 =245 this is testing2 =035 abc125 =035 abc126 =245 this is testing3 here i have to pull out those lines having two =035 instead of alternative 035 and 245 i.e extract... (18 Replies)
Discussion started by: umapearl
18 Replies

7. Shell Programming and Scripting

Extract a number from a line in a file and sed in another copied file

Dear all, I am trying to extract a number from a line in one file (task 1), duplicate another file (task 2) and replace all instances of the strings 300, in duplicated with the extracted number (task 3). Here is what I have tried so far: for ((k=1;k<4;k++)); do temp=`sed -n "${k}p"... (2 Replies)
Discussion started by: mnaqvi
2 Replies

8. Shell Programming and Scripting

extract the lines by index number

Hi All, I want to extract the lines from file1 by using the index numbers from file2. In example, cat file1.txt 265 ABC 956 ... 698 DFA 456 ... 456 DDD 145 ... 125 DSG 154 ... 459 CGB 156 ... 490 ASF 456 ... 484 XFH 489 ... 679 hgt 481 ... 111 dfg 986 ... 356 vhn 444 ...... (7 Replies)
Discussion started by: senayasma
7 Replies

9. Shell Programming and Scripting

Perl extract number from file & write to file

I have 1 file that has elements as follows. Also the CVR(10) and the word "SAUCE" only appear once in the file so maybe a grep command would work? file1 CVR( 9) = 0.385E+05, ! VEHICLE CVR(10) = 0.246E+05, ! SAUCE CVR(11) = 0.162E+03, ! VEHICLE I need to extract the... (6 Replies)
Discussion started by: austinj
6 Replies

10. Shell Programming and Scripting

Extract some lines from one file and add those lines to current file

hi, i have two files. file1.sh echo "unix" echo "linux" file2.sh echo "unix linux forums" now the output i need is $./file2.sh unix linux forums (3 Replies)
Discussion started by: snreddy_gopu
3 Replies
GREP(1) 						      General Commands Manual							   GREP(1)

NAME
grep - search a file for lines containing a given pattern SYNOPSIS
grep [-elnsv] pattern [file] ... OPTIONS
-e -e pattern is the same as pattern -c Print a count of lines matched -i Ignore case -l Print file names, no lines -n Print line numbers -s Status only, no printed output -v Select lines that do not match EXAMPLES
grep mouse file # Find lines in file containing mouse grep [0-9] file # Print lines containing a digit DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1 occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is returned. SEE ALSO
cgrep(1), fgrep(1), sed(1), awk(9). GREP(1)
All times are GMT -4. The time now is 09:59 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy