Sponsored Content
Top Forums Shell Programming and Scripting Strip 3 header lines and 4 trailer lines Post 302110012 by ganesh123 on Friday 9th of March 2007 12:54:27 PM
Old 03-09-2007
Anbu23 can you please explain the code

Code:
sed '1,3 d' f | sed -e :a -e '$d;N;2,4ba' -e 'P;D'

I am confused.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Append Header and Trailer

Hi everyone, I am new to Unix programming. My inquries is:- a) How to add a Header and Trailer in the set of data b) Include a number count of the data in the trailer The set of data only contained the information of 'Customer's Name' and 'Account Number'. I would like to add the Header... (2 Replies)
Discussion started by: balzzz
2 Replies

2. Shell Programming and Scripting

strip first 4 and last 2 lines from a file using perl

Hi I have a file from which i need to remove the first 4 and the last 2 lines.. i know how to do it with sed but i need to do it in a perl script.. can you please help me how to do that. Thanks (10 Replies)
Discussion started by: meghana
10 Replies

3. Shell Programming and Scripting

Strip one line from 2 blank lines in a file

Hi Is there any command to scan thru a file looking for 2 consecutive blank lines and if any remove one of them. Please let me know. Regards, Tipsy (6 Replies)
Discussion started by: tipsy
6 Replies

4. Shell Programming and Scripting

How to Strip lines off Streamed EDI Output

Attached is a streamed EDI ANSI X12 output where the segment terminator/delimiter is a tilde ~ character. Is it possible to do the following pseudo-code in a unix script (using either sed, awk and/or grep)? Open file StreamedOutput.txt Search for ISA and delete the data up to the tilde ~ char... (7 Replies)
Discussion started by: sapedi
7 Replies

5. Shell Programming and Scripting

Header as is.. trailer count

i have .DAT file FILE1.DAT 1200910270040625 2123456789 J123456 ABC 2123456789 K123456 ABC 2222222222 L123456 DEF 2333333333 M12345 GHI 30000004 My outfile FILE2.TXT should have like this, I need the header value as ie (1200910270040625 ) body rows remove the duplicate rows and the... (2 Replies)
Discussion started by: kshuser
2 Replies

6. Shell Programming and Scripting

Append transaction header lines to same transaction's detail lines

Hi guys, I was wondering if someone can give me a hand in helping me append transaction header line in a file at the end of the transaction detail lines. Basically, I have a file that looks like this: FHEAD File1 THEAD TRANS1-blah TDETL HI1 TDETL HI2 TDETL HI3 TTAIL TRANS1-blah THEAD... (3 Replies)
Discussion started by: rookie12
3 Replies

7. UNIX for Dummies Questions & Answers

oneliner for adding header and trailer

for example, i have a file with below content: 123413 866688 816866 818818 i want the output as: This is header 123413 866688 816866 818818 This is trailer i am able to achieve it using a bash script. (2 Replies)
Discussion started by: pandeesh
2 Replies

8. Shell Programming and Scripting

Verify the header and trailer in file

please see my requirement, I hope I am clear. (9 Replies)
Discussion started by: mirwasim
9 Replies

9. Shell Programming and Scripting

Sort without Header and Trailer

Hi , My UNIX system is SUN Solaris. I am trying to do a simple thing as described below. I have a PIPE delimited file that has header and trailer. So the file is something like below: Test1.txt looks like something below: field_data1|field_data2|and some more data --Header ... (5 Replies)
Discussion started by: Saanvi1
5 Replies

10. Shell Programming and Scripting

Find header in a text file and prepend it to all lines until another header is found

I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty. I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies
fmt(1)								   User Commands							    fmt(1)

NAME
fmt - simple text formatters SYNOPSIS
fmt [-cs] [-w width | -width] [inputfile]... DESCRIPTION
fmt is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in the -w width option. The default width is 72. fmt concatenates the inputfiles listed as arguments. If none are given, fmt formats text from the standard input. Blank lines are preserved in the output, as is the spacing between words. fmt does not fill nor split lines beginning with a `.' (dot), for compatibility with nroff(1). Nor does it fill or split a set of contiguous non-blank lines which is determined to be a mail header, the first line of which must begin with "From". Indentation is preserved in the output, and input lines with differing indentation are not joined (unless -c is used). fmt can also be used as an in-line text filter for vi(1). The vi command: !}fmt reformats the text between the cursor location and the end of the paragraph. OPTIONS
-c Crown margin mode. Preserve the indentation of the first two lines within a paragraph, and align the left margin of each subsequent line with that of the second line. This is useful for tagged paragraphs. -s Split lines only. Do not join short lines to form longer ones. This prevents sample lines of code, and other such for- matted text, from being unduly combined. -w width | -width Fill output lines to up to width columns. OPERANDS
inputfile Input file. ENVIRONMENT VARIABLES
See environ(5) for a description of the LC_CTYPE environment variable that affects the execution of fmt. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
nroff(1), vi(1), attributes(5), environ(5) NOTES
The -width option is acceptable for BSD compatibility, but it may go away in future releases. SunOS 5.11 9 May 1997 fmt(1)
All times are GMT -4. The time now is 01:13 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy