Reading a file one line at a time Post: 25061

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Reading one line at a time

Hi All, I'm trying to write an script where I'll be processing all the lines of an input file but one line at a time and produce a written output for each processed line. Where I'm having problems is preparing the loop where I check a the first line of the input file cut some bytes out of the...

2. Shell Programming and Scripting

reading a file inside awk and processing line by line

Hi Sorry to multipost. I am opening the new thread because the earlier threads head was misleading to my current doubt. and i am stuck. list=`cat /u/Test/programs`; psg "ServTest" | awk -v listawk=$list '{ cmd_name=($5 ~ /^/)? $9:$8 for(pgmname in listawk) ...

3. Shell Programming and Scripting

[Solved] Problem in reading a file line by line till it reaches a white line

So, I want to read line-by-line a text file with unknown number of files.... So: a=1 b=1 while ; do b=`sed -n '$ap' test` a=`expr $a + 1` $here do something with b etc done the problem is that sed does not seem to recognise the $a, even when trying sed -n ' $a p' So, I cannot read...

4. UNIX for Dummies Questions & Answers

Parsing file, reading each line to variable, evaluating date/time stamp of each line

So, the beginning of my script will cat & grep a file with the output directed to a new file. The data I have in this file needs to be parsed, read and evaluated. Basically, I need to identify the latest date/time stamp and then calculate whether or not it is within 15 minutes of the current...

5. Shell Programming and Scripting

How to start reading from the nth line till the last line of a file.

Hi, For my reuirement, I have to read a file from the 2nd line till the last line<EOF>. Say, I have a file as test.txt, which as a header record in the first line followed by records in rest of the lines. for i in `cat test.txt` { echo $i } While doing the above loop, I have read...

6. Shell Programming and Scripting

Reading text file, comparing a value in a line, and placing only part of the line in a variable?

I need some help. I would like to read in a text file. Take a variable such as ROW-D-01, compare it to what's in one line in the text file such as PROD/VM/ROW-D-01 and only input PROD/VM into a variable without the /ROW-D-01. Is this possible? any help is appreciated.

7. Shell Programming and Scripting

Comparison of fields then increment a counter reading line by line in a file

Hi, i have a scenario were i should compare a few fields from each line then increment a variable based on that. Example file 989878|8999|Y|0|Y|N|V 989878|8999|Y|0|N|N|V 989878|8999|Y|2344|Y|N|V i have 3 conditions to check and increment a variable on every line condition 1 if ( $3...

8. Shell Programming and Scripting

Reading line by line from live log file using while loop and considering only those lines start from

Hi, I want to read a live log file line by line and considering those line which start from time stamp; Below code I am using, which read line but throws an exception when comparing line that does not contain error code tail -F /logs/COMMON-ERROR.log | while read myline; do...

9. UNIX for Beginners Questions & Answers

Reading a file line by line and print required lines based on pattern

Hi All, i want to write a shell script read below file line by line and want to exclude the lines which contains empty value for MOUNTPOINT field. i am using centos 7 Operating system. want to read below file. # cat /tmp/d5 NAME="/dev/sda" TYPE="disk" SIZE="60G" OWNER="root"...

LEARN ABOUT DEBIAN

http::oai::record

HTTP::OAI::Record(3pm)					User Contributed Perl Documentation				    HTTP::OAI::Record(3pm)

NAME

       HTTP::OAI::Record - Encapsulates an OAI record

SYNOPSIS

	       use HTTP::OAI::Record;

	       # Create a new HTTP::OAI Record
	       my $r = new HTTP::OAI::Record();

	       $r->header->identifier('oai:myarchive.org:oid-233');
	       $r->header->datestamp('2002-04-01');
	       $r->header->setSpec('all:novels');
	       $r->header->setSpec('all:books');

	       $r->metadata(new HTTP::OAI::Metadata(dom=>$md));
	       $r->about(new HTTP::OAI::Metadata(dom=>$ab));

METHODS

       $r = new HTTP::OAI::Record( %opts )
	   This constructor method returns a new HTTP::OAI::Record object.

	   Options (see methods below):

		   header => $header
		   metadata => $metadata
		   about => [$about]

       $r->header([HTTP::OAI::Header])
	   Returns and optionally sets the record header (an HTTP::OAI::Header object).

       $r->metadata([HTTP::OAI::Metadata])
	   Returns and optionally sets the record metadata (an HTTP::OAI::Metadata object).

       $r->about([HTTP::OAI::Metadata])
	   Optionally adds a new About record (an HTTP::OAI::Metadata object) and returns an array of objects (may be empty).

   Header Accessor Methods
       These methods are equivalent to "$rec->header->$method([$value])".

       $r->identifier([$identifier])
	   Get and optionally set the record OAI identifier.

       $r->datestamp([$datestamp])
	   Get and optionally set the record datestamp.

       $r->status([$status])
	   Get and optionally set the record status (valid values are 'deleted' or undef).

       $r->is_deleted()
	   Returns whether this record's status is deleted.

perl v5.12.4							    2011-06-23						    HTTP::OAI::Record(3pm)