Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

How to remove last line of the file

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting How to remove last line of the file
# 8  
Old 10-20-2011
simple way if u r new to unix is -
1. find out total number of lines in the file

Code:
 
$wc -l filename

2. if 'n' is the total number of lines you got, move n-1 lines to another file/same file

Code:
 
$head -<n-1> filename > filename
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Remove first line of file

How can I use bash to remove the first line of a file? (3 Replies)
Discussion started by: locoroco
3 Replies

2. Shell Programming and Scripting

Remove line from file and read file line by line

I have a file output.txt. File looks like this name1 10 name2 2 name3 5 I get a number n and I need to remove all lines which has number (after name) smaller or equal to n number. After that I need to write lines from file and my output must be like this: Output: 'name1 10' Output: 'name2... (1 Reply)
Discussion started by: kubo12312
1 Replies

3. Shell Programming and Scripting

Remove first line of file

Is there an easy way to remove the first line of a file so that the file: aaron benjamin cecilia daniel elliot fernando would become benjamin cecilia daniel elliot fernando (4 Replies)
Discussion started by: locoroco
4 Replies

4. Shell Programming and Scripting

Remove line from file

Hi!!! When I use vi editor my file looks like this: aaa2: 123.45^M aaa1: 11.34^M aaa3: aaa3: 15.56^M How to remove only line 3 ??? Thanks!!! (7 Replies)
Discussion started by: tdev457
7 Replies

5. Shell Programming and Scripting

Remove a line from a file

Hi ,guys. I have one question: I want to write a script which removes a line with certain string from a file, for example The name of the file is: "passwd", the contents of it is below: ************************* ... brownj2:x:5000: hynesp:x:5001: leeb:x:5002 dioxna:x:5003 ... ... (2 Replies)
Discussion started by: daikeyang
2 Replies

6. UNIX for Dummies Questions & Answers

remove a line within a file

Hi all, i have a text file similar to belowA1 A2 A3 B1 ... .... *** # first occurance B1 ... .... *** # second occurance B1 ... .... *** # third occurance My desired output is B1 ... .... *** # second occurance B1 ... .... *** # third occurance I want to remove the first line that is after... (3 Replies)
Discussion started by: new2ss
3 Replies

7. Shell Programming and Scripting

How to remove last line of the file

hi sir, i need help..how to remove last line of the each file for example i have files a.txt ,b.txt and so on..i wanted to delete last list of each file..the patten not same for each file..any help? thanks in advance (3 Replies)
Discussion started by: mani_um
3 Replies

8. Shell Programming and Scripting

Remove header(first line) and trailer(last line) in ANY given file

Hi, I need some help in removing the header (first line) and the trailer (last line) in a give file... The data file actually comes in EBCDIC format and I converted it into ASCII.. Now I need to strip off the first line and the last line.. I think we can use sed to do something like this:... (2 Replies)
Discussion started by: madhunk
2 Replies

9. Shell Programming and Scripting

Remove every third line from a file

I need to remove every second and every third line from a file. My idea was to do it in two operations. First every third line, then every second line. The problem is that i can't find out how to do it. I tried to look for some sed oneliners, but couldn't find any. Suggestions? (4 Replies)
Discussion started by: bistru
4 Replies
Login or Register to Ask a Question

LEARN ABOUT DEBIAN

hotswaprc

HOTSWAPRC(5)							File Formats Manual						      HOTSWAPRC(5)

NAME

       hotswaprc - configuration file for  hotswap

DESCRIPTION

       /etc/hotswaprc is the global configuration file for the hotswap utility.

       It  allows system administrators to specify arbitrary shell scripts to be run after a device is inserted, as well as before and after it is
       removed. Scripts are selected according to the model name retrieved from the device. This is particularly helpful for automatic	configura-
       tion of CD-RW drives, which require SCSI emulation and bypass normal access via the IDE subsystem.

       hotswaprc  is  implemented  as  an  Extensible Mark-up Language (XML) application.  XML documents are structured using elements of the form
       <tag-name> content <tag-name>. A Document Type Definition (DTD) describes the possible content of each element.

       Please refer to the XML specification for more information. The hotswap distribution also contains an example file,  doc/hotswaprc.example,
       which includes the DTD for the configuration file format.

ELEMENTS

       <hotswap>
	      This is the root element of the document. Each valid hotswaprc must contain exactly one <hotswap> element. The <hotswap> element may
	      contain an arbitrary number of <device> elements.

       <device>
	      The configuration file contains one <device> element for every device for which scripts are defined. The <device>  element  is  com-
	      posed of the following elements in this order: <name>, <post-insert>, <pre-remove>, <post-remove>. All but <name> are optional.

       <name> The content of this element is the model identification string of the IDE device the current <device> element refers to.

       <post-insert>
	      Contains the shell script that is to be executed after the device has been inserted and registered with the kernel.

       <pre-remove>
	      Contains the shell script that is to be run before hotswap attempts to unregister the device.

       <post-remove>
	      Contains the shell script that is to be run after the device had been unregistered.

REPORT BUGS

       Report bugs to t.stadelmann1@physics.ox.ac.uk.

AUTHOR

       Written by Tim Stadelmann.

SEE ALSO

       hotswap(1), xhotswap(1).

COPYRIGHT

       Copyright (c) 2002-2003 Tim Stadelmann.

       Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License (GPL), Version 2 or
       any later version published by the Free Software Foundation.

								26th November 2002						      HOTSWAPRC(5)