Sponsored Content
Top Forums Shell Programming and Scripting Concatenate lines between lines starting with a specific pattern Post 302465678 by ctsgnb on Saturday 23rd of October 2010 09:49:03 AM
Old 10-23-2010
Quote:
Originally Posted by Scrutinizer
I know, but I figured it would complicate the code and it would not really matter. I did add the linefeed at the end, otherwise if the output gets written to a file, that last line becomes invalid, since the last line is not terminated with a linefeed..
Code:
awk '{printf />/?((NR>1)?RS:x)"%s"RS:"%s",$0}END{print x}' infile

Dude, you're true, but i like to see your skill in action, that's why i challenged you Smilie
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

shell script to remove all lines from a file before a line starting with pattern

hi,, i hav a file with many lines.i need to remove all lines before a line begginning with a specific pattern from the file because these lines are not required. Can u help me out with either a perl script or shell script example:- if file initially contains lines: a b c d .1.2 d e f... (2 Replies)
Discussion started by: raksha.s
2 Replies

2. Shell Programming and Scripting

delete lines starting with a pattern

i have a file sample.txt containing i want to delete lines starting with 123 neglecting spaces and tabs. but not lines containing 123. i.e. i want files sample.txt as help me thanxx (4 Replies)
Discussion started by: yashwantkumar
4 Replies

3. Shell Programming and Scripting

Delete multiple lines starting with a specific pattern

Hi, just tried some script, awk, sed for the last 2 hours and now need help. Let's say I have a huge file of 800,000 lines like this : It's a tedious job to look through it, I'd like to remove those useless lines in it as there's a few thousands : Or to be even more precise : if line1 =... (6 Replies)
Discussion started by: Zurd
6 Replies

4. Shell Programming and Scripting

Append lines for a specific pattern

Input: 09:43:46,538 INFO first text 10:45:46,538 INFO second text 11:00:46,538 INFO third more text Output: 09:43:46,538 INFO first text 10:45:46,538 INFO second text 11:00:46,538 INFO third more text The rule is to append all lines so each line contains this format... (7 Replies)
Discussion started by: chitech
7 Replies

5. Shell Programming and Scripting

Awk, sed - concatenate lines starting with string

I have a file that looks like this: John Smith http://www.profile1.com http://www.profile2.com http://www.profile3.com Marc Olsen http://www.profile4.com http://www.profile5.com http://www.profile6.com http://www.profile7.com Lynne Doe http://www.profile8.com http://www.profile9.com... (3 Replies)
Discussion started by: locoroco
3 Replies

6. Shell Programming and Scripting

How to concatenate lines with specific pattern?

How to concatenate lines with specific pattern? I have data dumped from a table into text file. In some occurrence the data row is split into two rows. Example: 12345678|Global Test|Global Test Task|My Request|Date|Date|Date|1|1| 12345679|Global Test2|Global Test Task2|My... (8 Replies)
Discussion started by: nixtime
8 Replies

7. Shell Programming and Scripting

Want to get lines before specific pattern

Hi , I want to insert data into a new file after grepping specific pattern . for more info please read following for example: abc=12345678902222 def=45678904444 ------- ------- INAVLID ABC I want to "INAVLID ABC" grep above pattern from multiple files and want to write abc value and ... (3 Replies)
Discussion started by: vipin auja
3 Replies

8. Shell Programming and Scripting

Vi editor deleting lines with specific pattern

Hi, I need to delete all lines in the file using vi editor which start with word aternqaco. Please assist. aternqaco.__oracle_base='/amdbqa01/app/oracle'#ORACLE_BASE set from environment aternqa.__oracle_base='/amdbqa01/app/oracle'#ORACLE_BASE set from environment... (3 Replies)
Discussion started by: Vishal_dba
3 Replies

9. Shell Programming and Scripting

How to delete lines starting with specific string?

Dear all, I would like to delete even lines starting with "N" together with their respective titles which are actually odd lines. Below is the example of input file. I would like to remove line 8 and 12 together with its title line, i.e., line 7 and 11, respectively.... (2 Replies)
Discussion started by: huiyee1
2 Replies

10. 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
FMT(1)							    BSD General Commands Manual 						    FMT(1)

NAME
fmt -- simple text formatter SYNOPSIS
fmt [-Cr] [goal [maximum]] [name ...] fmt [-Cr] [-g goal] [-m maximum] [name ...] DESCRIPTION
fmt is a simple text formatter which reads the concatenation of input files (or standard input if none are given) and produces on standard output a version of its input with lines as close to the goal length as possible without exceeding the maximum. The goal length defaults to 65 and the maximum to 75. The spacing at the beginning of the input lines is preserved in the output, as are blank lines and interword spac- ing. In non raw mode, lines that look like mail headers or begin with a period are not formatted. -C instructs fmt to center the text. -g goal New way to set the goal length. -m maximum New way to set the maximum length. -r Raw mode; formats all lines and does not make exceptions for lines that start with a period or look like mail headers. fmt is meant to format mail messages prior to sending, but may also be useful for other simple tasks. For instance, within visual mode of the ex(1) editor (e.g., vi(1)) the command !}fmt will reformat a paragraph, evening the lines. SEE ALSO
mail(1), nroff(1) HISTORY
The fmt command appeared in 3BSD. BUGS
The program was designed to be simple and fast - for more complex operations, the standard text processors are likely to be more appropriate. BSD
May 29, 2007 BSD
All times are GMT -4. The time now is 04:29 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy