Sponsored Content
Top Forums Shell Programming and Scripting Copy only the initial 10 lines from a file to another Post 302143673 by matrixmadhan on Friday 2nd of November 2007 02:05:46 PM
Old 11-02-2007
Code:
cnt=`wc -l < file`
awk -v var=$cnt 'NR <= var - 5' file

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to copy multiple lines from a file to another using AWK?

Hi, I have a abc.txt file. In this file there is a SQL query which Iwant to copy and print it on another file.The query (for eg) is written like this: SELECT field1, field2, field3 from table1,table2 where <conditions> END I want to copy this query to another... (3 Replies)
Discussion started by: jisha
3 Replies

2. UNIX for Dummies Questions & Answers

copy lines from opne file to another

Hi all, I'm new to shell scripting. I want to copy the first N lines from a file to another file. Can someone please tell me how this can be done. Thanks Himi (2 Replies)
Discussion started by: HIMANI
2 Replies

3. UNIX for Advanced & Expert Users

Copy lines from a log file based on timestamp

how to copy lines from a log file based on timestamp. INFO (RbrProcessFlifoEventSessionEJB.java:processFlight:274) - E_20080521_110754_967: rbrAciInfoObjects listing complete! INFO (RbrPnrProcessEventSessionEJB.java:processFlight:197) - Event Seq: 1647575217; Carrier: UA; Flt#: 0106; Origin:... (1 Reply)
Discussion started by: ranjiadmin
1 Replies

4. Shell Programming and Scripting

Script to capture new lines in a file and copy it to new file

Hi All, I have a file that gives me new line/output every 5 minutes. I need to create a script that capture new line/output besides "IN CRON_STATUS", in this case the new output is "begin ------ cron_status.sh - -----------". I want this script to capture the line starting from "begin ------... (0 Replies)
Discussion started by: fara_aris
0 Replies

5. Shell Programming and Scripting

Grep: Copy all lines from log file into new file

Hello everyone. I have a log file that contains multiple domains: www.thisdomain.com agent.thisdomain.com that.thisdomain.com I need to copy all of the lines that contain "www.thisdomain.com" from the log and output them into a new file. I've tried everything with little luck. Please help... (3 Replies)
Discussion started by: aberli
3 Replies

6. Shell Programming and Scripting

Copy selective lines from text file

Hello, I have a text file which I need to check for presence of certain tags, and then copy a subsequent portion of text into another file. The tag matching canbe done with Grep but I do not know how to copy selective lines from one file to another. Is it possible do that? I checked up some... (8 Replies)
Discussion started by: ajayram
8 Replies

7. Shell Programming and Scripting

copy range of lines in a file based on keywords from another file

Hi Guys, I have the following problem. I have original file (org.txt) that looks like this module v_1(.....) //arbitrary number of text lines endmodule module v_2(....) //arbitrary number of text lines endmodule module v_3(...) //arbitrary number of text lines endmodule module... (6 Replies)
Discussion started by: kaaliakahn
6 Replies

8. Shell Programming and Scripting

How to copy lines that starts with either 3 or 4 into new file?

Hi Guys, I have an awk script that would search the input file for line that starts with a number 3 and copies into a new text file. I want to extend this script to find the lines that either starts with 3 or a or b and copy all those lines into the new file. Here is what I have so far:... (1 Reply)
Discussion started by: Amith821
1 Replies

9. UNIX for Beginners Questions & Answers

How to copy only some lines from very big file?

Dear all, I have stuck with this problem for some days. I have a very big file, this file can not open by vi command. There are 200 loops in this file, in each loop will have one line like this: GWA quasiparticle energy with Z factor (eV) And I need 98 lines next after this line. Is... (6 Replies)
Discussion started by: phamnu
6 Replies

10. Shell Programming and Scripting

Copy lines from x to y to another file

OS : RHEL 7.2 Shell : bash I have a file which has lines like below I want to copy from 2nd line to the 6th line and copy(redirect) those lines to another file. $ cat patterns.txt hello world hello asia hello europe hello africa hello america hello antartica hello... (9 Replies)
Discussion started by: omega3
9 Replies
CHSH(1) 							   User Commands							   CHSH(1)

NAME
chsh - change your login shell SYNOPSIS
chsh [-s shell] [-l] [-u] [-v] [username] DESCRIPTION
chsh is used to change your login shell. If a shell is not given on the command line, chsh prompts for one. chsh is used to change local entries only. Use ypchsh, lchsh or any other implementation for non-local entries. OPTIONS
-s, --shell shell Specify your login shell. -l, --list-shells Print the list of shells listed in /etc/shells and exit. -u, --help Print a usage message and exit. -v, --version Print version information and exit. VALID SHELLS
chsh will accept the full pathname of any executable file on the system. However, it will issue a warning if the shell is not listed in the /etc/shells file. On the other hand, it can also be configured such that it will only accept shells listed in this file, unless you are root. EXIT STATUS
Returns 0 if operation was successful, 1 if operation failed or command syntax was not valid. SEE ALSO
login(1), passwd(5), shells(5) AUTHOR
Salvatore Valente <svalente@mit.edu> AVAILABILITY
The chsh command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. util-linux July 2009 CHSH(1)
All times are GMT -4. The time now is 04:38 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy