Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to read one row at time using shell script?
Top Forums Shell Programming and Scripting How to read one row at time using shell script? Post 302979727 by wbport on Thursday 18th of August 2016 10:38:31 AM
Old 08-18-2016
Code:
exec 9<my.file
while in=`line <&9`
do
  set $in
  in=$n
  command with positional parameter $in
done

is one way. If you have $4 instead of $n you will get the 4th item on the line, space delimited.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

why shell scripting takes more time to read a file

i have done a coding in shell scripting which reads a file line by line and does something....it takes more than 30 seconds to execute for a single file. when i do the same with perl scripting it takes less than a second. is that shell scripting is not efficient while working with large number of... (1 Reply)
Discussion started by: brkavi_in
1 Replies

2. Shell Programming and Scripting

shell script add each row value

Hi, I wrote below small script which will add up each row value from a file and print the total, but it is not.plz let me know what is wrong.script hangs and not displaying anything. ----------------- while read line ; do sum=0; sum=$sum+$line; done echo $sum; exit 0; ------------------... (8 Replies)
Discussion started by: pradeep_script
8 Replies

3. Shell Programming and Scripting

Perl or Shell script to read a transaction log in real time

Hello, I have a Apache webserver running on RedHat. Its primary function is a proxy server for users accessing the internet. I have a transaction log that logs every transactions of every users. For users trying to access certain sites/content the transactions goes into a 302 redirect loop and... (2 Replies)
Discussion started by: bruno406
2 Replies

4. Shell Programming and Scripting

Need shell script to read two file at same time and print out in single file

Need shell script to read two file at same time and print output in single file Example I have two files 1) file1.txt 2) file2.txt File1.txt contains Aaa Bbb Ccc Ddd Eee Fff File2.txt contains Zzz Yyy Xxx (10 Replies)
Discussion started by: sreedhargouda
10 Replies

5. Shell Programming and Scripting

How to do row comparison in shell script

Hi, I need help on doing the below thing in shell script. I have a file with millions of rows called "abc.txt". i have another file with millions of rows called "xyz.txt". I would like to do the below operation. Open the abc.txt, read the first line, do some operations on the column... (2 Replies)
Discussion started by: informsrini
2 Replies

6. Shell Programming and Scripting

Script shell on line and row

Hello, I want to make a script to do this : the file is with line : TOTO TEST1 TOTO TEST2 TITI TEST1 TITI TEST2 TITI TEST3 i want he become : TOTO TEST1 TEST2 TITI TEST1 TEST2 TEST3 (3 Replies)
Discussion started by: safsound
3 Replies

7. Shell Programming and Scripting

Spliting a row to multiple rows using shell script

Please advice script for changing from A to B I'd like to Split a row to multiple rows with 4 columns using shell script. The data of the file is in one row as below that is 28Mbyte size. A> cto10001 0000000 201010 10:52:13 cto10001 0000000 201011 10:52:13 cto10001 0000000 201011 10:52:13... (2 Replies)
Discussion started by: ianpapa
2 Replies

8. Shell Programming and Scripting

Shell script to convert epoch time to real time

Dear experts, I have an epoch time input file such as : - 1302451209564 1302483698948 1302485231072 1302490805383 1302519244700 1302492787481 1302505299145 1302506557022 1302532112140 1302501033105 1302511536485 1302512669550 I need the epoch time above to be converted into real... (4 Replies)
Discussion started by: aismann
4 Replies

9. UNIX for Dummies Questions & Answers

Shell Script: Traverse Database Table Row by Row

Hello Everyone, My issue is that I want to traverse a database table row by row and do some action on the value retrieved in each row. I have gone through a lot of shell script questions/posts. I could find row by row traversal of a file but not a database table. Please help. Thanks &... (5 Replies)
Discussion started by: ahsan.asghar
5 Replies

10. Shell Programming and Scripting

Want to remove the last characters from each row of csv using shell script

Hi, I've a csv file seperated by '|' from which I'm trying to remove the excess '|' characters more than the existing fields. My CSV looks like as below. HRLOAD|Service|AddChange|EN PERSONID|STATUS|LASTNAME|FIRSTNAME|ITDCLIENTUSERID|ADDRESSLINE1 10000001|ACTIVE|Testazar1|Testore1|20041|||... (24 Replies)
Discussion started by: rajak.net
24 Replies

LEARN ABOUT CENTOS

locale::codes::langvar

Locale::Codes::LangVar(3)				User Contributed Perl Documentation				 Locale::Codes::LangVar(3)

NAME

       Locale::Codes::LangVar - standard codes for language variation identification

SYNOPSIS

	  use Locale::Codes::LangVar;

	  $lvar = code2langvar('acm');		       # $lvar gets 'Mesopotamian Arabic'
	  $code = langvar2code('Mesopotamian Arabic'); # $code gets 'acm'

	  @codes   = all_langvar_codes();
	  @names   = all_langvar_names();

DESCRIPTION

       The "Locale::Codes::LangVar" module provides access to standard codes used for identifying language variations, such as those as defined in
       the IANA language registry.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default IANA language
       registry codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language variations. 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:

	  $lvar = code2langvar('arevela','alpha');
	  $lvar = code2langvar('arevela',LOCALE_LANGVAR_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of alphanumeric codes from the IANA language registry, such as 'arevela' for Eastern Armenian.

	   This code set is identified with the symbol "LOCALE_LANGVAR_ALPHA".

	   This is the default code set.

ROUTINES

       code2langvar ( CODE [,CODESET] )
       langvar2code ( NAME [,CODESET] )
       langvar_code2code ( CODE ,CODESET ,CODESET2 )
       all_langvar_codes ( [CODESET] )
       all_langvar_names ( [CODESET] )
       Locale::Codes::LangVar::rename_langvar  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangVar::add_langvar  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangVar::delete_langvar  ( CODE [,CODESET] )
       Locale::Codes::LangVar::add_langvar_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangVar::delete_langvar_alias  ( NAME )
       Locale::Codes::LangVar::rename_langvar_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangVar::add_langvar_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangVar::delete_langvar_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.iana.org/assignments/language-subtag-registry
	   The IANA language subtag registry.

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 v5.16.3							    2013-04-12						 Locale::Codes::LangVar(3)
All times are GMT -4. The time now is 09:21 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy