Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: awk concatenate every line of a file in a single line
Top Forums Shell Programming and Scripting awk concatenate every line of a file in a single line Post 302590814 by sdf on Tuesday 17th of January 2012 04:22:25 PM
Old 01-17-2012
awk concatenate every line of a file in a single line
I have several hundreds of tiny files which need to be concatenated into one single line and all those in a single file. Some files have several blank lines. Tried to use this script but failed on it.

Code:
awk 'END { print r } r && !/^/ { print FILENAME, r; r = "" }{ r = r ? r $0 : $0 }' *.txt >concatenated_lines.txt

Last edited by sdf; 01-17-2012 at 05:28 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

concatenate all duplicate line in a file.

Hi All, i have a zip file like the format 794051400123|COM|24|0|BD|R|99.98 794051413727|COM|11|0|BD|R|28.99 794051415622|COM|23|0|BD|R|28.99 883929004676|COM|0|0|BD|R|28.99 794051400123|MOM|62|0|BD|R|99.98 794051413727|MOM|4|0|BD|R|28.99 794051415622|MOM|80|0|BD|R|28.99 ... (30 Replies)
Discussion started by: vaskarbasak
30 Replies

2. Shell Programming and Scripting

Concatenate strings line by line

Hi, I have a noob question . Can someone help me how to concatenate line by line using this variables? var1: Apple| Banana| var2: Red Yellow then how can I concatenate both line by line? in which the result would be: Apple|Red Banana|Yellow just to generate a row result i was... (6 Replies)
Discussion started by: hagdanan
6 Replies

3. Shell Programming and Scripting

sed / awk to concatenate lines until blank line

Sample input (line feed indicated by ) --------------- The red fox jumped over the brown fence of the red hous He then went into the orchard --------------- Desired Output --------------- The red fox jumped over the brown fence of the red house He then went into the orchard (11 Replies)
Discussion started by: dunstonrocks
11 Replies

4. Shell Programming and Scripting

awk, perl Script for processing a single line text file

I need a script to process a huge single line text file: The sample of the text is: "forward_inline_item": "Inline", "options_region_Australia": "Australia", "server_event_err_msg": "There was an error attempting to save", "Token": "Yes", "family": "Family","pwd_login_tab": "Enter Your... (1 Reply)
Discussion started by: hmsadiq
1 Replies

5. Shell Programming and Scripting

Awk not working due to missing new line character at last line of file

Hi, My awk program is failing. I figured out using command od -c filename that the last line of the file doesnt end with a new line character. Mine is an automated process because of this data is missing. How do i handle this? I want to append new line character at the end of last... (2 Replies)
Discussion started by: pinnacle
2 Replies

6. Shell Programming and Scripting

Formatting File having big single line into 95 Char Per Line

Hi All, I have 4 big files which contains one big line containing formatted character records, I need to format each file in such way that each File will have 95 Characters per line. Last line of each file will have newline character at end. Before:- File Name:- File1.dat 102 121340560... (10 Replies)
Discussion started by: lancesunny
10 Replies

7. Shell Programming and Scripting

Concatenate small line with next line perl script

Hello to all, I'm new to perl, I have input file that contains the string below: 315350535ff450000014534130101ff4500ff45453779ff450ff45545f01ff45ff453245341ff4500000545000This string has as line separator "ff45". So, I want to print each line but the code below is not working. perl -pe '... (2 Replies)
Discussion started by: Ophiuchus
2 Replies

8. Shell Programming and Scripting

Help with concatenate multiple line into one line

Hi, Do anybody experience how to concatenate multiple line into one line by using awk or perl command? Input file: >set1 QAWEQRQ@EWQEASED ASDAEQW QAWEQRQTQ ASRFQWRGWQ From the above Input file, it got 5 lines Desired output file: >set1... (6 Replies)
Discussion started by: perl_beginner
6 Replies

9. UNIX for Dummies Questions & Answers

To find and display the middle line in a file using single line command.

Hi all, How can i display the middle line of a file using a single line command? (6 Replies)
Discussion started by: Lakme Pemmaiah
6 Replies

10. UNIX for Beginners Questions & Answers

Output to file print as single line, not separate line

example of problem: when I echo "$e" >> /home/cogiz/file.txt result prints to file as:AA BB CC I need it to save to file as this:AA BB CC I know it's probably something really simple but any help would be greatly appreciated. Thank You. Cogiz (7 Replies)
Discussion started by: cogiz
7 Replies

LEARN ABOUT REDHAT

unix2dos

unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME

       unix2dos - UNIX to DOS text file format converter

SYNOPSYS

       unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...]

       Options:

       [-hkqV] [--help] [--keepdate] [--quiet] [--version]

DESCRIPTION

       This manual page documents unix2dos, the program that converts text files in UNIX format to DOS format.

OPTIONS

       The following options are available:

       -h --help
	      Print online help.

       -k --keepdate
	      Keep the date stamp of output file same as input file.

       -q --quiet
	      Quiet mode. Suppress all warning and messages.

       -V --version
	      Prints version information.

       -c --convmode convmode
	      Sets conversion mode. Simulates unix2dos under SunOS.

       -o --oldfile file ...
	      Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used.

       -n --newfile infile outfile ...
	      New  file  mode.	Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be
	      used or you WILL lost your files.

EXAMPLES

       Get input from stdin and write output to stdout.

	      unix2dos

       Convert and replace a.txt. Convert and replace b.txt.

	      unix2dos a.txt b.txt

	      unix2dos -o a.txt b.txt

       Convert and replace a.txt in ASCII conversion mode.  Convert and replace b.txt in ISO conversion mode.

	      unix2dos a.txt -c iso b.txt

	      unix2dos -c ascii a.txt -c iso b.txt

       Convert and replace a.txt while keeping original date stamp.

	      unix2dos -k a.txt

	      unix2dos -k -o a.txt

       Convert a.txt and write to e.txt.

	      unix2dos -n a.txt e.txt

       Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt.

	      unix2dos -k -n a.txt e.txt

       Convert and replace a.txt. Convert b.txt and write to e.txt.

	      unix2dos a.txt -n b.txt e.txt

	      unix2dos -o a.txt -n b.txt e.txt

       Convert c.txt and write to e.txt. Convert and replace a.txt.  Convert and replace b.txt. Convert d.txt and write to f.txt.

	      unix2dos -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt

DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHOR

       Benjamin Lin - ( blin@socs.uts.edu.au )

MISCELLANY

       Tested environment:

	      Linux 1.2.0 with GNU C 2.5.8

	      SunOS 4.1.3 with GNU C 2.6.3

	      MS-DOS 6.20 with Borland C++ 4.02

       Suggestions and bug reports are welcome.

SEE ALSO

       dos2unix(1)

1995.03.31							   unix2dos v2.2						       unix2dos(1)
All times are GMT -4. The time now is 03:03 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy