=head1 NAME
 
B<chtab> -To add, delete or update rows in the database tables.
 
=head1 SYNOPSIS
 
I<chtab [-h| --help]>
 
I<chtab [-v| --version]>

I<chtab [keycolname=keyvalue] [tablename.colname=newvalue] > 

I<chtab -d [keycolname=keyvalue] [tablename.colname=newvalue] > 

=head1 DESCRIPTION

 The chtab command adds or deletes or updates the attribute value in the input table.column for the input keyvalue.


=head1 OPTIONS


B<-h>          Display usage message.

B<-v>          Command Version. 

B<-d>          Delete option. 



=head1 RETURN VALUE

0 The command completed successfully.

1 An error has occurred.

=head1 EXAMPLES

1. To add a node=node1 to the nodelist table with groups=all: 

I<chtab  node=node1 nodelist.groups=all > 

2. To add a keyword (tftpdir) and value (/tftpboot) to the site table: 

I<chtab  key=tftpdir site.value=/tftpboot > 
	
	
3. To add node1 to the  nodetype table with os=rhel5: 

I<chtab  node=node1 nodetype.os=rhel5> 
	
	
4. To change node1 in nodetype table setting os=sles: 
	
I<chtab  node=node1 nodetype.os=sles> 

5. To delete node1 from nodetype table: 

I<chtab -d node=node1 nodetype> 


=head1 FILES
 
/opt/xcat/bin/chtab


=head1 NOTES

This command is part of the xCAT software product.