How to set IFS for a specific command


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting How to set IFS for a specific command
# 8  
Old 03-12-2009
Quote:
Originally Posted by Corona688
I find that some shells(bash) treat IFS specially, overwriting it when you wouldn't expect it to.

Bash does not overwrite IFS, but it does always set it to the default in a new shell. It does not take its value from the environment. If you want something other than the default in a shell script, you must set it explicitly. (This is the same behaviour as ksh.)
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl to update field based on a specific set of rules

In the perl below, which does execute, I am having trouble with the else in Rule 3. The digit in f{8} is extracted and used to update f accordinly along with the value in f. There can be either - * or + before the number that is extracted but the same logic applies, that is if the value is greater... (5 Replies)
Discussion started by: cmccabe
5 Replies

2. Shell Programming and Scripting

Odd Behaviour for Set and IFS variable

Ok, so I'm playing around with delimters and reading files. and I came across this behaviour that I thought was a bit odd, regarding how the set command takes values... If I run this: IFS=$'-' #Assigns the - as the default delimiter for bash set I-love-my-gf-a-lot #uses set to put a bunch of... (1 Reply)
Discussion started by: Lost in Cyberia
1 Replies

3. Solaris

Set script to run during specific times

Hi all, I have this script which sends mail whenever the system is down. It works fine. Normally the system is down from 21 00 to 21 30 from Monday to Saturday and from 21 00 on Sunday to Monday 06 00 for maintenance. So I want the below script to run only when the system is up, i.e outside the... (2 Replies)
Discussion started by: frum
2 Replies

4. UNIX for Dummies Questions & Answers

Quick UNIX command to display specific lines in the middle of a file from/to specific word

This could be a really dummy question. I have a log text file. What unix command to extract line from specific string to another specific string. Is it something similar to?: more +/"string" file_name Thanks (4 Replies)
Discussion started by: aku
4 Replies

5. Shell Programming and Scripting

Print specific lines of a repeated set of data

I have a file that needs 1st line, 2nd line, and 26th line printed from every chunk of data. Each chunk of data contains 26 lines (#line+%line+24 data lines = 26 lines of data repeated). Input file: # This is a data file used for blockA (chunk 1). % 10576 A 10 0 1 04 (data1) 03 (data2)... (2 Replies)
Discussion started by: morrbie
2 Replies

6. HP-UX

What is the use of command set -- and set - variable?

Hi, I am using hp unix i want to know the use of the following commands set -- set - variable thanks (4 Replies)
Discussion started by: gomathi
4 Replies

7. Shell Programming and Scripting

BASH - set specific user variable via string operators

Apologies for the utter triviality of this question, but we all have to start somewhere! I've also tried searching but this question is pretty vague so I didn't (a) really know what to search for or (b) get many relevant hits to what I did search for. Anyway, I'm in the process of self-teaching... (1 Reply)
Discussion started by: u5j84
1 Replies

8. Shell Programming and Scripting

Perform a set of actions for a specific file type

Hello, I have a problem that I'm having quite a bit of trouble with. I am trying to create a script that performs a specific sequence of actions for a file of a specific type. This is an abbreviated version of my basic script: #!/bin/sh #coulombic calculations... (2 Replies)
Discussion started by: oehtus
2 Replies

9. Shell Programming and Scripting

Set specific part in command output into variable

I am trying unsuccessfully to set into a variable a specific part of command output: The command output will be as: line 1: <varied> line 2: 2 options: option 1: Set view: ** NONE ** or option 2: Set view: <different_name_of_views_always_without_spaces> and I would like to get into... (7 Replies)
Discussion started by: orit
7 Replies

10. UNIX for Dummies Questions & Answers

Help on IFS command!

Hi! I am working in korn shell. I want to reset the dimiliter for the set command to "|" but instead of a command prompt return I am getting something as below After issuing the command I am getting this....as if the shell is expecting something else. Can anybody suggest what's the problem. ... (2 Replies)
Discussion started by: udiptya
2 Replies
Login or Register to Ask a Question
MYSQL_FIX_PRIVILE(1)					       MySQL Database System					      MYSQL_FIX_PRIVILE(1)

NAME
mysql_fix_privilege_tables - upgrade MySQL system tables SYNOPSIS
mysql_fix_privilege_tables --password=root_password DESCRIPTION
Note In MySQL 5.1.7, mysql_fix_privilege_tables was superseded by mysql_upgrade, which should be used instead. See mysql_upgrade(1). Some releases of MySQL introduce changes to the structure of the system tables in the mysql database to add new privileges or support new features. When you update to a new version of MySQL, you should update your system tables as well to make sure that their structure is up to date. Otherwise, there might be capabilities that you cannot take advantage of. mysql_fix_privilege_tables is an older script that previously was used to uprade the system tables in the mysql database after a MySQL upgrade. Before running mysql_fix_privilege_tables, make a backup of your mysql database. On Unix or Unix-like systems, update the system tables by running the mysql_fix_privilege_tables script: shell> mysql_fix_privilege_tables You must run this script while the server is running. It attempts to connect to the server running on the local host as root. If your root account requires a password, indicate the password on the command line like this: shell> mysql_fix_privilege_tables --password=root_password The mysql_fix_privilege_tables script performs any actions necessary to convert your system tables to the current format. You might see some Duplicate column name warnings as it runs; you can ignore them. After running the script, stop the server and restart it so that any changes made to the system tables take effect. On Windows systems, MySQL distributions include a mysql_fix_privilege_tables.sql SQL script that you can run using the mysql client. For example, if your MySQL installation is located at C:Program FilesMySQLMySQL Server 5.1, the commands look like this: C:> cd "C:Program FilesMySQLMySQL Server 5.1" C:> binmysql -u root -p mysql mysql> SOURCE share/mysql_fix_privilege_tables.sql Note Prior to version 5.1.17, the mysql_fix_privilege_tables.sql script is found in the scripts directory. The mysql command will prompt you for the root password; enter it when prompted. If your installation is located in some other directory, adjust the path names appropriately. As with the Unix procedure, you might see some Duplicate column name warnings as mysql processes the statements in the mysql_fix_privilege_tables.sql script; you can ignore them. After running the script, stop the server and restart it. COPYRIGHT
Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc. This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License. This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/. SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online at http://dev.mysql.com/doc/. AUTHOR
Sun Microsystems, Inc. (http://www.mysql.com/). MySQL 5.1 04/06/2010 MYSQL_FIX_PRIVILE(1)