Sponsored Content
Top Forums Shell Programming and Scripting printing first n lines in a file without using head Post 302239450 by danmero on Tuesday 23rd of September 2008 04:34:51 PM
Old 09-23-2008
Code:
sed -n '1p' file

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

question about printing number of lines in a file

as the title, I had try use "wc -l test.txt" but it give me "<many spaces> 384 test.txt" but the result I want is just "384" could any person can help me that? Thx:( (5 Replies)
Discussion started by: a8111978
5 Replies

2. UNIX for Dummies Questions & Answers

Counting no. of lines and printing it at the start of the file

Dear users, I need to count the number of lines in a simple text file and print the number on the first line of that same file. I know I can count the lines using wc -l file.txt this gives for example 100 file.txt I need the number 100 to be printed at the very top of file.txt... (2 Replies)
Discussion started by: jenjen_mt
2 Replies

3. Shell Programming and Scripting

printing lines to a file from a particular string

Hi, A very Good Evening to All, I am writing a script for my application. I have a file with 1000 lines. Among that 1000 lines i am searching for a particular string. And from that string i need to pull all the data in to a seperate file. For example the contents of my file is as below. ... (4 Replies)
Discussion started by: intiraju
4 Replies

4. UNIX for Dummies Questions & Answers

ASCII file printing staggered lines

I am trying to print a simple ascii file but it comes out as a staggered output. I know there's a simple solution but can't remember it, am a little rusty. eg. a file that look like aa bbb cccc would print out like aa bbb ccccc Any pointers would be... (5 Replies)
Discussion started by: lordvoldemort
5 Replies

5. UNIX for Dummies Questions & Answers

Display lines 30 to 40 of a text file using head and/or tail commands

Assume that the text file contains over 40 lines. How do you do this?!?!? (5 Replies)
Discussion started by: phunkypants
5 Replies

6. Shell Programming and Scripting

Printing several lines of a file after a specific expression

Hello, I want to print a number of lines of a file after a specific expression of a line. I have this sed command but it prints only 1 line after the expression. How could I adapt it to print for instance 10 lines after or 15 lines after ? sed -n '/regexp/{n;p;}' Thx & Regs, Rany. (5 Replies)
Discussion started by: rany1
5 Replies

7. UNIX for Dummies Questions & Answers

head\tail how to display middle lines

hay i need to display middle line: 1 2 3 4 5 how can i display 3-4? (6 Replies)
Discussion started by: margan_ron
6 Replies

8. Shell Programming and Scripting

Trouble printing multiple lines to a new file

Hi, I'm trying to auto generate some php files with a default preamble at the top which is a block comment. The problem is that my output has no new lines and it looks like the output from "ls" is being printed after everyline This is my code #!/bin/bash read -d '' pre_amble... (1 Reply)
Discussion started by: racshot65
1 Replies

9. Shell Programming and Scripting

Printing out duplicate lines in a file with Csh

Hi guys, I was wondering if there was an easy solution, using tcsh, to print out lines that appear twice with a given pattern in a file? So if I am looking for lines with "test" in a given file that contains: blah test blah1 blah //don't print this out as it doesn't have... (3 Replies)
Discussion started by: chu816
3 Replies

10. Shell Programming and Scripting

Printing the lines that appear in an other file, and the three lines after them

Hi ! I need some help with a script I am writing. I am trying to compare two files, the first file being in this format : Header1 Text1-1 Text1-2 Text1-3 Header2 Text2-1 etc... For each header, I want to check if it appears in the second file, and if it is the case print the header... (4 Replies)
Discussion started by: jbi
4 Replies
head(1) 						      General Commands Manual							   head(1)

NAME
head - Displays the beginning of files SYNOPSIS
Current Syntax head [-c bytes] [-n lines] [file...] Obsolescent Syntax head [-lines] [file...] STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: head: XCU5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. OPTIONS
The default count is 10. [Tru64 UNIX] Specifies the number of bytes to display. If the last byte written is not a newline character, a newline character is appended to the output. Specifies the number of lines to display Works exactly as -n lines. Obsolescent. OPERANDS
Path name of the input file. If you do not specify a file, head reads standard input. DESCRIPTION
The head command copies the standard input to standard output, ending output of each file at the specified point. NOTES
The obsolescent form is subject to withdrawal at any time. EXIT STATUS
The following exit values are returned: Successful completion. An error occurred. EXAMPLES
To display the first 5 lines of a file called test, enter: head -n 5 test To display the first ten lines of all files (except those with a name beginning with a period), enter: head * ENVIRONMENT VARIABLES
The following environment variables affect the execution of head: Provides a default value for the internationalization variables that are unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari- ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value, overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multibyte characters in arguments and input files). Determines the locale for the format and contents of diagnostic messages written to standard error. Determines the location of message catalogues for the processing of LC_MESSAGES. SEE ALSO
Commands: cat(1), more(1), pg(1), sed(1), tail(1) Standards: standards(5) head(1)
All times are GMT -4. The time now is 04:46 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy