Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Concatenate lines between lines starting with a specific pattern
Top Forums Shell Programming and Scripting Concatenate lines between lines starting with a specific pattern Post 302465674 by ctsgnb on Saturday 23rd of October 2010 09:35:30 AM
Old 10-23-2010
Quote:
Originally Posted by Scrutinizer
Try this:
Code:
awk '{printf (/>/)?RS"%s"RS:"%s",$0}END{print x}' infile

your code does not work because of this:
Code:
substr($0,1,1)

Hi Scruti ... ready for a nitpicking ? Smilie

Your code add an unexpected empty line if the input file start with a ">" line 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

LEARN ABOUT OPENSOLARIS

lptest

lptest(1B)					     SunOS/BSD Compatibility Package Commands						lptest(1B)

NAME

       lptest - generate line printer ripple pattern

SYNOPSIS

       /usr/ucb/lptest [length [count]]

DESCRIPTION

       The  lptest  utility  writes the traditional ripple test pattern to the standard output. In 96 lines, the ripple test pattern prints all 96
       printable ASCII characters in each position. The ripple test pattern was originally created to test printers.  It is also useful for  test-
       ing terminals, driving terminal ports, debugging, and performing tasks that require a quick supply of random data.

       This command is obsolete.

OPTIONS

       length	 Specifies the length of the output line in characters. 79 characters is the default.

       count	 Specifies the number of output lines. 200 lines is the default. If  count is specified, length must also be specified.

EXIT STATUS

       The following exit values are returned:

       0	   Successful completion.

       non-zero    An error occurred.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscplp 		   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

SunOS 5.11							    9 Sep 1996								lptest(1B)
All times are GMT -4. The time now is 10:44 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy