Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Deleting text start at 2nd line....
Top Forums Shell Programming and Scripting Deleting text start at 2nd line.... Post 302746795 by pamu on Thursday 20th of December 2012 03:36:25 AM
Old 12-20-2012
Quote:
Originally Posted by PikK45
@pamu: Guess you have got the requirements wrong! Moreover, you don't need to check for (NR-2)%4 and NR==2. The former would do the task! Smilie
No. I got the requirements right..

Please check.

Quote:
Originally Posted by cs_novice
How can I delete the first '2' characters in the 2nd line and every fourth line thereafter (Means line no.s 2, 6, 10...so on).
For example if the following is my Input
PS: I have put '..' only to illustrate.
And for method. Come on man. This is one way of doing and he has another way of doing.
It's up to you which method you want to choose.Smilie
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to print the lines after 2nd line from text file

Hi All, I need to print the lines after 2nd line irrespective of the number of lines in file if the file contents are like below ---------- root:!:0:0::/root:/usr/bin/ksh daemon:!:1:1::/etc: bin:!:2:2::/bin: sys:!:3:3::/usr/sys: adm:!:4:4::/var/adm: uucp:!:5:5::/usr/lib/uucp:... (6 Replies)
Discussion started by: ram1729
6 Replies

2. Shell Programming and Scripting

sed: Find start of pattern and extract text to end of line, including the pattern

This is my first post, please be nice. I have tried to google and read different tutorials. The task at hand is: Input file input.txt (example) abc123defhij-E-1234jslo 456ujs-W-abXjklp From this file the task is to grep the -E- and -W- strings that are unique and write a new file... (5 Replies)
Discussion started by: TestTomas
5 Replies

3. Shell Programming and Scripting

print line if 2nd field exists in text

2 files, first one has 3 fields seperated by ||| and 2nd one is plain text. I want to copy the lines from the first file if the 2nd field is present anywhere in the text file. This is what I've tried, but I'm new to awk and shell scripting in general so it's kinda broken. #!/bin/awk -f BEGIN... (15 Replies)
Discussion started by: FrancoisCN
15 Replies

4. UNIX for Advanced & Expert Users

Sed - add text to start of line if 1st char anything but space

Problem: I have a lot of files, the files first line should always have 4 spaces before any text. Occasionally some of the files will miss the leading spaces and it's a problem. This is only in the first line. So if there are 4 spaces then text, do nothing. If there are not 4 spaces, add 4... (2 Replies)
Discussion started by: Vryali
2 Replies

5. Shell Programming and Scripting

How to input text on every 2nd line?

I have a file in two columns consisting of only numbers. I would like to put a string (the same textstring) on every second line, so that 501006 420.000 401602 165.000 . . . becomes: *Some_text 501006 420.000 *Some_text 401602 165.000 *Some_text . . . Are you up for it? (7 Replies)
Discussion started by: Medova
7 Replies

6. Shell Programming and Scripting

help with finding text and deleting line

HI All, I need to search for a particular pattern input by the user in order to delete the line. My username.txt has username@email.com:John:149.0.3.4:1 username1@email.com:Harry:149.0.3.4:1 username1@email.net:Alex:149.0.3.4:1 username1@email.edu:Nemo:149.0.3.4:1 The program i written ... (3 Replies)
Discussion started by: ichar
3 Replies

7. Shell Programming and Scripting

deleting the part of the file(overwrite) using start and end point

here is the contents of bigfile.sql CREATE TABLE `Table11` ( `id` int(11) NOT NULL , `entityName` enum('Lines','EndUsers') COLLATE utf8_unicode_ci NOT NULL, `parentAllianceMigrationProjectId` varchar(255) NOT NULL ) ENGINE=InnoDB AUTO_INCREMENT=2000 DEFAULT CHARSET=utf8... (30 Replies)
Discussion started by: vivek d r
30 Replies

8. UNIX for Dummies Questions & Answers

Deleting a pattern in UNIX without deleting the entire line

Hi I have a file: r58778.3|SOURCES={KEY=f665931a...,fw,221-705}|ERRORS={16_1:T,30_1:T,56_1:C,57_1:T,59_1:A,101_1:A,115:-,158_1:C,186_1:A,204:-,271_1:T,305:-,350_1:C,368_1:G,442_1:C,472_1:G,477_1:A}|SOURCE_1="Contig_1092402550638"(f665931a359e36cea0976db191ff60ff09cc816e) I want to retain... (15 Replies)
Discussion started by: Alyaa
15 Replies

9. Shell Programming and Scripting

Add text at start and ending of every line

Hi all, Is there other way to Add text at start and ending of every line? here my script: cat file.txt |awk '{print "<p align=\"justify\">"$0"</p>"}' but the problem they put including white spaces, I only need those line have a sentence or text not an skip all have empty string or have... (7 Replies)
Discussion started by: lxdorney
7 Replies

10. Shell Programming and Scripting

Deleting all the N lines after the line in which text is found.

Hi! I want to delete N (say 10) lines after the line which text is found in a file "A".Also to delete the line in which the text is found. Only one occurrence of the search string in the file "A" The text to be deleted is in another text file "B". All the search texts in the file "B" are in... (3 Replies)
Discussion started by: shahid1632
3 Replies

LEARN ABOUT V7

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)
All times are GMT -4. The time now is 03:08 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy