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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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print(1)							   User Commands							  print(1)

NAME
print - shell built-in function to output characters to the screen or window SYNOPSIS
ksh print [ -Rnprsu [n]] [arg...] DESCRIPTION
ksh The shell output mechanism. With no flags or with flag - or -, the arguments are printed on standard output as described by echo(1). OPTIONS
The following options are supported: -n suppresses new-line from being added to the output. -R -r (raw mode) ignore the escape conventions of echo. The -R option will print all subsequent arguments and options other than -n. -p causes the arguments to be written onto the pipe of the process spawned with |& instead of standard output. -s causes the arguments to be written onto the history file instead of standard output. -u [ n ] flag can be used to specify a one digit file descriptor unit number n on which the output will be placed. The default is 1. EXIT STATUS
The following exit values are returned: 0 Successful operation. >0 Output file is not open for writing. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
echo(1), ksh(1), attributes(5) SunOS 5.10 15 Apr 1994 print(1)
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