Sponsored Content
Top Forums Shell Programming and Scripting Process multiple lines in a text file Post 302640797 by 47shailesh on Tuesday 15th of May 2012 10:25:01 AM
Old 05-15-2012
how you like to process rows in between a(s) ?
here is a way to print lines in between pattern
Code:
awk '$1=="a"{c=1;next} $1=="b"{c=0} c{print}' FS== OFS== infile

instead of print you can add your line processing rule
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

removing multiple lines of text in a file

Hi, I'm trying to remove multiple lines of text based off a series of different words and output it to a new file The document contains a ton of data but i want to delete any line that has the following mx1.rr.biz.com or ns2.ri.biz.com i tried using grep -v filename "mx1.rr.biz.com" >... (3 Replies)
Discussion started by: spartan22
3 Replies

2. Shell Programming and Scripting

[bash help]Adding multiple lines of text into a specific spot into a text file

I am attempting to insert multiple lines of text into a specific place in a text file based on the lines above or below it. For example, Here is a portion of a zone file. IN NS ns1.domain.tld. IN NS ns2.domain.tld. IN ... (2 Replies)
Discussion started by: cdn_humbucker
2 Replies

3. UNIX for Dummies Questions & Answers

Help please, extract multiple lines from a text file

Hi all, I need to extract lines between the lines 'RD' and 'QA' from a text file (following). there are more that one of such pattern in the file and I need to extract all of them. however, the number of lines between them is varied in the file. Therefore, I can not just use 'grep -A' command.... (6 Replies)
Discussion started by: johnshembb
6 Replies

4. UNIX for Dummies Questions & Answers

JOINING MULTIPLE LINES IN A TEXT FILE USING GAWK

sir... am having a data file of customer master., containing some important fields as a set one line after another., what i want is to have one set of these fields(rows) one after another in line.........then the second set... and so on... till the last set completed. I WANT THE DATA... (0 Replies)
Discussion started by: KANNI786
0 Replies

5. UNIX for Dummies Questions & Answers

How to generate multiple lines in a text file?

Hello, I want to create a file whose content is multiple lines of strings. The string has the following pattern: aaaa/bbbb/A-B.txt A is a variable ranges from A1 to A2 B is a variable ranges from B1 to B2 Any ideas? Thanks. (17 Replies)
Discussion started by: vic005
17 Replies

6. UNIX for Dummies Questions & Answers

print multiple lines from text file based on pattern list

I have a text file with a list of items/patterns: ConsensusfromCGX_alldays_trimmedcollapsedfilteredreadscontiglist(229095contigs)contig12238 ConsensusfromCGX_alldays_trimmedcollapsedfilteredreadscontiglist(229095contigs)contig34624... (1 Reply)
Discussion started by: Oyster
1 Replies

7. Shell Programming and Scripting

Extracting Multiple Lines from a Text File

Hello. I am sorry if this is a common question but through all my searching, I haven't found an answer which matches what I want to do. I am looking for a sed command that will parse through a large text file and extract lines that start with specific words (which are repeated throughout the... (4 Replies)
Discussion started by: MrDumbQuestion
4 Replies

8. UNIX for Dummies Questions & Answers

How to grep multiple lines from a text file using another text file?

I would like to use grep to select multiple lines from a text file using a single-column text file. Basically I want to only select lines from the first text file where the second column of the first text file matches the second text file. How do I go about doing that? Thanks! (5 Replies)
Discussion started by: evelibertine
5 Replies

9. Shell Programming and Scripting

Remove multiple lines from a text file

Hi I have a text file named main.txt with 10,000 lines. I have another file with a list of line numbers (around 1000) of the lines to be deleted from main.txt file. I tried with sed but it removes only a range of line numbers. Thanks for any help!! (1 Reply)
Discussion started by: prvnrk
1 Replies

10. Shell Programming and Scripting

Join multiple lines from text file

Hi Guys, Could you please advise how to join multiple details lines into single row, with HEADER 1 as the record separator and comma(,) as the field separator. Input: HEADER 1, HEADER 2, HEADER 3, 11,22,33, COLUMN1,COLUMN2,COLUMN3, AA1, BB1, CC1, END: ABC HEADER 1, HEADER 2,... (3 Replies)
Discussion started by: budz26
3 Replies
makedbm(8yp)															      makedbm(8yp)

Name
       makedbm - make a yellow pages dbm file

Syntax
       makedbm [ -i yp_input_file ] [ -o yp_output_name ] [ -d yp_domain_name ] [ -m yp_master_name ] infile outfile
       makedbm [ -u dbmfilename ]

Description
       The command takes the file specified by the argument infile and converts it to a pair of files in format, namely and Each line of the input
       file is converted to a single record.  All characters up to the first tab or space form the key, and the rest of the line is defined as the
       key's  associated data.	If a line ends with a backslash (), the data for that record is continued onto the next line.	It is left for the
       clients of the yellow pages to interpret the number sign (#); does not treat it as a comment character.	The  infile  parameter	can  be  a
       hyphen (-), in which case reads the standard input.

       The  command  is  meant	to  be	used in generating files for the yellow pages service.	The command generates a special entry with the key
       yp_last_modified, which is the date of infile.

Options
       -i     Create a special entry with the key yp_input_file.

       -o     Create a special entry with the key yp_output_name.

       -d     Create a special entry with the key yp_domain_name.

       -m     Create a special entry with the key yp_master_name.  If no master host name is specified, yp_master_name will be set  to	the  local
	      host name.

       -u     Undo a file.  That is, print out a file one entry per line, with a single space separating keys from values.

Examples
       The  following  example shows how a combination of commands can be used to make the yellow pages files and from the file.  The percent sign
       (%) signifies the system prompt.

       % awk 'BEGIN { FS = ":"; OFS = ""; }
	{ print $1, $0 }' /etc/passwd > ptmp
       % makedbm ptmp passwd.byname
       % rm ptmp

       The command creates the file ptmp which is in a form usable by The command uses the ptmp file to create the yellow pages dbm files and  The
       command removes the ptmp file.

See Also
       yppasswd(1yp), dbm(3x), ypmake(8yp)

																      makedbm(8yp)
All times are GMT -4. The time now is 10:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy