Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

head(1) [suse man page]

HEAD(1) 							   User Commands							   HEAD(1)

NAME
head - output the first part of files SYNOPSIS
head [OPTION]... [FILE]... DESCRIPTION
Print the first 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -c, --bytes=[-]N print the first N bytes of each file; with the leading `-', print all but the last N bytes of each file -n, --lines=[-]N print the first N lines instead of the first 10; with the leading `-', print all but the last N lines of each file -q, --quiet, --silent never print headers giving file names -v, --verbose always print headers giving file names --help display this help and exit --version output version information and exit N may have a multiplier suffix: b 512, kB 1000, K 1024, MB 1000*1000, M 1024*1024, GB 1000*1000*1000, G 1024*1024*1024, and so on for T, P, E, Z, Y. AUTHOR
Written by David MacKenzie and Jim Meyering. REPORTING BUGS
Report head bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> COPYRIGHT
Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for head is maintained as a Texinfo manual. If the info and head programs are properly installed at your site, the command info coreutils 'head invocation' should give you access to the complete manual. GNU coreutils 7.1 July 2010 HEAD(1)

Check Out this Related Man Page

HEAD(1) 								FSF								   HEAD(1)

NAME
head - output the first part of files SYNOPSIS
head [OPTION]... [FILE]... DESCRIPTION
Print first 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -c, --bytes=SIZE print first SIZE bytes -n, --lines=NUMBER print first NUMBER lines instead of first 10 -q, --quiet, --silent never print headers giving file names -v, --verbose always print headers giving file names --help display this help and exit --version output version information and exit SIZE may have a multiplier suffix: b for 512, k for 1K, m for 1 Meg. AUTHOR
Written by David MacKenzie. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for head is maintained as a Texinfo manual. If the info and head programs are properly installed at your site, the command info head should give you access to the complete manual. head (coreutils) 4.5.3 February 2003 HEAD(1)
Man Page

15 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to extract many lines from a file, typically the 1000 last

Hello! Is it anyone who might know how to extract the n last lines from a file, typically the 1000 last? Until know I have used sed -n np filename, but it takes each line separately, and is hence very time consuming. Thank you in advance! (3 Replies)
Discussion started by: kingkong
3 Replies

2. UNIX for Dummies Questions & Answers

simple 'head' question

I'm sorry, but the example in the man pages was no help. I know head -5 fileName will give you the first 5 lines of the file but how do you get like the 6th-13th lines only or one line before the end of the file? Sorry I just started learning the basics..... =( (3 Replies)
Discussion started by: terms5
3 Replies

3. Shell Programming and Scripting

head command

Hi All, How can the head command be used to extract only a particular line. By default head -n filename displays the first n lines. I want only the nth line. I couldn't get it from forum search. Thanks, Sumesh (6 Replies)
Discussion started by: sumesh.abraham
6 Replies

4. Shell Programming and Scripting

head usage

$ct=1 head -n $ct file. When i used like this, i got an error , Bad usage of head Cant we use variables in place of number in HEAD. In my requirement for every iteration i should increase the number in Head and tail the last one. HOw can i achieve this (5 Replies)
Discussion started by: vasuarjula
5 Replies

5. Shell Programming and Scripting

printing first n lines in a file without using head

i have to print first n lines of a file. how can i do that without using head command. for some reason i do not want to use Head. is there a way to get that result using awk or sed?. i an using this on korn shell for AIX Thanks.. (7 Replies)
Discussion started by: dareman123
7 Replies

6. UNIX for Dummies Questions & Answers

How to get nth line from a file usuing commands

Hi to all, I have a file with 1000 lines,Now i need to get 789th record.So please any one help me out from this. Thanks in advance. Sathish (3 Replies)
Discussion started by: bsathishmca
3 Replies

7. Shell Programming and Scripting

cutting lines

Dear All, Is there a way to cut the lines that have been "head" Here is what i m trying to do Please advice there is file name dummy.txt now i am trying to head this file 4 time by using a loop and every time this file is head with different values e.g in first instance it will... (7 Replies)
Discussion started by: jojo123
7 Replies

8. UNIX for Advanced & Expert Users

does head create new file

hi, Here my doubt is can we create a file using head/tail command in unix. for example: my file consists 2000 lines , i want to cut it into 2. does this work please give correct command line. head -1000 abc.txt > acd.txt tail -1000 abc.txt > bdc.txt hi, Here my doubt is can we... (5 Replies)
Discussion started by: chittisri
5 Replies

9. 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

10. Shell Programming and Scripting

how to print the value > 1000 in a file

if the file test include 1233 0.123 0.128 0.165 0.14 14.5 134556 48968 can i show the output value > 1000 by command grep or awk or...? 1233 134556 48968 Thank you. (6 Replies)
Discussion started by: bleach8578
6 Replies

11. UNIX for Dummies Questions & Answers

How to randomly select lines from a text file

I have a text file with 1000 lines, I want to randomly select 200 lines from it and print them as output. How do I go about doing that? Thanks! (7 Replies)
Discussion started by: evelibertine
7 Replies

12. Shell Programming and Scripting

Take the input from output logs

Hi, If I have loads of logs like below and I am interested to print the requests(lines) which have taken more than 1000 ms. In this case how could I print the two highlighted lines ? abc.log reqquest id232342 , adfghfasdfsaf, TIME=30 reqquest id11111 , asdfdfghdffsaf, TIME=54 reqquest... (4 Replies)
Discussion started by: nariwithu
4 Replies

13. Shell Programming and Scripting

Print continues names

Gents, I will like to print continues names according to a range of numbers example first number 1000 last number 1005 I would like to get the following result tape1000 tape1001 tape 1002 tape1003 tape1004 tape1005. Thanks for your support. (4 Replies)
Discussion started by: jiam912
4 Replies

14. Shell Programming and Scripting

Rearranging Data Set

Hello everybody, I've got the following problem: The data set I have is an ASCII file containing a header over 4 lines and the actual data comprised of dezimal numbers in a 1000x1000 grid (1000 lines and 1000 columns). Since I want to plot the data in GMT I need to convert it into the... (3 Replies)
Discussion started by: Evilknievel
3 Replies

15. Shell Programming and Scripting

Bash : Checking Large file for specific lines

Morning .. I have a file with approximately 1000 lines. I want to check that the file contains, for example, 100 lines. Something like whats given below is ugly. And even if I create a function I have to call it 100 times. I may need to look through multiple files at times. Is there a... (4 Replies)
Discussion started by: sumguy
4 Replies