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Top Forums Shell Programming and Scripting Reading line by line from live log file using while loop and considering only those lines start from Post 302863705 by pravin27 on Tuesday 15th of October 2013 03:49:06 AM
Old 10-15-2013
Hi Ketan,

1) Use code tag while posting your code.
2) You can check whether variable is zero length or not.
Code:
if [ -n "$ERROR_CODE" ] ; then
	if [ "$ERROR_CODE" -eq 100021 ] ; then
		ERROR_MSG="Route failed. Moving to failed routes pool."
	fi 
fi

This User Gave Thanks to pravin27 For This Post:
 

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line(1) 						      General Commands Manual							   line(1)

NAME
line - read one line from user input SYNOPSIS
timeout] DESCRIPTION
copies one line (up to a new-line) from the standard input and writes it on the standard output. It returns an exit code of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal. Options recognizes the following command-line option: Timeout after timeout seconds where timeout is an integer value (if a non-integer value is specified, it is converted to an integer; i.e., rounded down). A blank is required between and the timeout argument. This option is not documented in POSIX and other industry standards, and should not be used in portable applications. EXTERNAL INFLUENCES
International Code Set Support Single- and multi-byte character code sets are supported. EXAMPLES
The following lines in a shell script prompt for a file name and display information about the file: To limit the response time to 10 seconds, use the form: then test for no response. If no response occurs before timeout expires, a default behavior should be provided. WARNINGS
This command is likely to be withdrawn from X/Open standards. Applications using this command might not be portable to other vendors' sys- tems. As an alternative is recommended. SEE ALSO
sh(1), read(2). STANDARDS CONFORMANCE
line(1)
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