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Full Discussion: Checking number of commas in each line.
Top Forums Shell Programming and Scripting Checking number of commas in each line. Post 302789771 by Anupam_Halder on Thursday 4th of April 2013 08:04:19 AM
Old 04-04-2013
Checking number of commas in each line.
Hi All,

I am checking whether each line is having "n" number of commas or nor. In case not then I need to exit the process.

I tried

Code:
cat "$TEMP_FILE" | while read LINE
do 
	processing_line=`expr $processing_line + 1`
	no_of_delimiters=`echo "$LINE" | awk -F ',' '{ print NF }'`
	if [ $no_of_delimiters -ne $no_of_expected_fields ]
                echo "Error at line $processing_line"
		exit
	fi
done

It's working fine. However the number of records in the file is around .5 million. So it's taking too much time to process it. Anyway I can improve the performance?

Thanks in advanced.
 

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LEARN ABOUT SUSE

rnano

RNANO(1)						      General Commands Manual							  RNANO(1)

NAME

       rnano - Restricted mode for Nano's ANOther editor, an enhanced free Pico clone

SYNOPSIS

       rnano [OPTIONS] [[+LINE,COLUMN] FILE]...

DESCRIPTION

       This manual page briefly documents the rnano command.

       nano is a small, free and friendly editor which aims to replace Pico, the default editor included in the non-free Pine package. Rather than
       just copying Pico's look and feel, nano also implements some missing (or disabled by  default)  features  in  Pico,  such  as  "search  and
       replace" and "go to line and column number".

       rnano  is  a  restricted  version of nano, which only edits specific files and doesn't allow the user access to the filesystem or a command
       shell.

       In restricted mode, nano will not:

       o read or write to any file not specified on the command line;

       o read any nanorc files;

       o allow suspending;

       o allow a file to be appended to, prepended to, or saved under a different name;

       o use backup files or spell checking.

OPTIONS

       +LINE,COLUMN
	      Places cursor at line number LINE and column number COLUMN (at least one of which must be specified)  on	startup,  instead  of  the
	      default of line 1, column 1.

       -?     Same as -h (--help).

       -h (--help)
	      Show a summary of command line options and exit.

       -V (--version)
	      Show the current version number and exit.

       See the nano(1) manpage for the complete documentation of nano.

BUGS

       Please send any comments or bug reports to nano@nano-editor.org.

       The nano mailing list is available from nano-devel@gnu.org.

       To subscribe, email to nano-devel-request@gnu.org with a subject of "subscribe".

HOMEPAGE

       http://www.nano-editor.org/

AUTHOR

       Chris  Allegretta  <chrisa@asty.org>,  et  al  (see  AUTHORS  for  details).   This  manual  page was originally written by Thijs Kinkhorst
       <thijs@kinkhorst.com>, for the Debian system (but may be used by others).

August 23, 2007 						   version 2.0.0							  RNANO(1)
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