Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Script to move the first line of a file to the end
Top Forums Shell Programming and Scripting Script to move the first line of a file to the end Post 302271556 by Yogesh Sawant on Friday 26th of December 2008 08:28:27 AM
Old 12-26-2008
using Perl:
Code:
# first_to_last.pl
my $file = shift;
open(FH, '<', $file)  or  die "Failed to read file $file : $! \n";
my $first_line      = <FH>;
my @remaining_lines = <FH>;
close(FH);

open(FH, '>', $file)  or  die "Failed to write file $file : $! \n";
print FH @remaining_lines;
print FH $first_line;
close(FH);

run this script as:
Code:
perl first_to_last.pl list.txt

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Help on shell script : syntax error at line 62: `end of file' unexpected

Hi All, I have written a korn script (code pasted below). It is giving the error while debugging "new.sh: syntax error at line 62: `end of file' unexpected". I have re-written the whole code in VI and explored all help related to this error on this Unix forum and tried it. Somehow, I could... (7 Replies)
Discussion started by: schandrakar1
7 Replies

2. Shell Programming and Scripting

script to move two lines to the end of a file

My input file is multiline file and I am writing a script to search for a pattern and move the line with the pattern and the next line to the end of the file. Since I am trying to learn awk, I thought I would try it. My input looks like the following: D #testpoint 1 510.0 D #testpoint2 ... (5 Replies)
Discussion started by: banjo25
5 Replies

3. Shell Programming and Scripting

Move a line to end of file

Can somebody help me with a script .... Read a file /etc/inittab find the string starting with rcml and move it entirely towards the end of file. rcml:2:once:/usr/sni/aix52/rc.ml > /dev/console 2>&1 I basically want to change the startup sequence. (2 Replies)
Discussion started by: imanuk2007
2 Replies

4. Shell Programming and Scripting

awk script to move a line after the matched pattern line

I have the following text format in a file which lists the question first and then 5 choices after that the explanantion and finally the answer. 1.The amount of time it takes for most of a worker’s occupational knowledge and skills to become obsolete has been declining because of the... (2 Replies)
Discussion started by: nanchil_guy
2 Replies

5. Shell Programming and Scripting

help needed with shell script to append to the end of a specific line in a file on multiple servers

Hi Folks, I was given a task to append three IP's at the end of a specific (and unique) line within a file on multiple servers. I was not able to do that with the help of a script. All I could was: for i in server1 server2 server3 server4 do ssh $i done I know 'sed' could be used to... (5 Replies)
Discussion started by: momin
5 Replies

6. Shell Programming and Scripting

how to move a word to the end of file

Hey guys, I want move a specific word from the middle of the text and move it the end of the file, which means I want the word to be deleted from it's line and moved to the end of file. I know how to use sed for adding a word the end of file, but I don't know how to move words. tnx (2 Replies)
Discussion started by: Johanni
2 Replies

7. Shell Programming and Scripting

sed: how to move matched pattern to end of previous line

Hello, I'm new to this forum. I've been doing a lot of sed work lately and have found many useful tips on this forum. I've hit a roadblock in a project, though, and could really use some help. I have a text file with many lines like the following, i.e., some lines begin with a single word... (3 Replies)
Discussion started by: paroikoi
3 Replies

8. Shell Programming and Scripting

Cannot execute/finish script because of last line syntax error: unexpected end of file/token `done'

first of all I thought the argument DONE is necessary for all scripts that have or begin with do statements which I have on my script, However, I still don't completely understand why I am receiving an error I tried adding another done argument statement but didn't do any good. I appreciate... (3 Replies)
Discussion started by: wolf@=NK
3 Replies

9. Shell Programming and Scripting

With script bash, read file line per line starting at the end

Hello, I'm works on Ubuntu server My goal : I would like to read file line per line, but i want to started at the end of file. Currently, I use instructions : while read line; do COMMAND done < /var/log/apache2/access.log But, the first line, i don't want this. The file is long... (5 Replies)
Discussion started by: Fuziion
5 Replies

10. Shell Programming and Scripting

Printing string from last field of the nth line of file to start (or end) of each line (awk I think)

My file (the output of an experiment) starts off looking like this, _____________________________________________________________ Subjects incorporated to date: 001 Data file started on machine PKSHS260-05CP ********************************************************************** Subject 1,... (9 Replies)
Discussion started by: samonl
9 Replies

LEARN ABOUT MOJAVE

locale::codes::langfam

Locale::Codes::LangFam(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangFam(3pm)

NAME

       Locale::Codes::LangFam - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangFam;

	  $lext = code2langfam('apa');		       # $lext gets 'Apache languages'
	  $code = langfam2code('Apache languages');    # $code gets 'apa'

	  @codes   = all_langfam_codes();
	  @names   = all_langfam_names();

DESCRIPTION

       The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
       ISO 639-5.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
       language family codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language families. A code set may be specified using either a name, or a
       constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langfam('apa','alpha');
	  $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.

	   This is the default code set.

ROUTINES

       code2langfam ( CODE [,CODESET] )
       langfam2code ( NAME [,CODESET] )
       langfam_code2code ( CODE ,CODESET ,CODESET2 )
       all_langfam_codes ( [CODESET] )
       all_langfam_names ( [CODESET] )
       Locale::Codes::LangFam::rename_langfam  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangFam::add_langfam  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangFam::delete_langfam  ( CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangFam::delete_langfam_alias  ( NAME )
       Locale::Codes::LangFam::rename_langfam_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::delete_langfam_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.loc.gov/standards/iso639-5/id.php
	   ISO 639-5 .

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2013 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.18.2							    2013-11-04					       Locale::Codes::LangFam(3pm)
All times are GMT -4. The time now is 03:51 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy