Can we use write() to modify/update intermediate records in a file Post: 302132041

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Count No of Records in File without counting Header and Trailer Records

I have a flat file and need to count no of records in the file less the header and the trailer record. I would appreciate any and all asistance Thanks Hadi Lalani

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Help needed in removing intermediate segments from a pipe delimited segment file

Hi, I just stuckup in doing some regular expressions on a file. I have data which has multiple FHS and BTS segments like: FHS|12121|LOCAL|2323 MSH|10101|POTAMAS|2323 PID|121221|THOMAS|DAVID|23432 OBX|2342|H1211|3232 BTS|0000|MERSTO|LIABLE FHS|12121|LOCAL|2323 MSH|10101|POTAMAS|2323...

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unix script for update or insert records from a file to a oracle table

Hi, I have delimited file(|). Sample data: 1|name|50009|DS24|0|12 2|name|30009|DS24|0|13 3|name|20409|DS24|0|14 4|name|20009|DS24|0|15 5|name|10009|DS24|0|16 I want to load this data into a oracle table (update and insert) Please help me the commands and also...

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update records in a file using shell script...

Hi, I have a file with 6 columns. First 3 columns together make unique record. I have a variable ($v) which hold a value that is obtained by a caliculaion. I have to replace value in 5th columnn with the value of the variable ($v). The value $v is caliculated from col4 and col6 values. ...

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insert a header in a huge data file without using an intermediate file

I have a file with data extracted, and need to insert a header with a constant string, say: H|PayerDataExtract if i use sed, i have to redirect the output to a seperate file like sed ' sed commands' ExtractDataFile.dat > ExtractDataFileWithHeader.dat the same is true for awk and...

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Push records to array during implicit loop and write to file

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Suggest update of two commands - who to write to?

I think it's about time the df and du commands (executables?) were updated to display gigabyte units without one having to do their own calculations from the -m option (display in megabytes). This is one of those "little nothing" annoyances that, at the same time, would positively show new...

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Grep specific records from a file of records that are separated by an empty line

Hi everyone. I am a newbie to Linux stuff. I have this kind of problem which couldn't solve alone. I have a text file with records separated by empty lines like this: ID: 20 Name: X Age: 19 ID: 21 Name: Z ID: 22 Email: xxx@yahoo.com Name: Y Age: 19 I want to grep records that...

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Deleting duplicate records from file 1 if records from file 2 match

I have 2 files "File 1" is delimited by ";" and "File 2" is delimited by "|". File 1 below (3 record shown): Doc1;03/01/2012;New York;6 Main Street;Mr. Smith 1;Mr. Jones Doc2;03/01/2012;Syracuse;876 Broadway;John Davis;Barbara Lull Doc3;03/01/2012;Buffalo;779 Old Windy Road;Charles...

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Remove duplicated records and update last line record counts

Hi Gurus, I need to remove duplicate line in file and update TRAILER (last line) record count. the file is comma delimited, field 2 is key to identify duplicated record. I can use below command to remove duplicated. but don't know how to replace last line 2nd field to new count. awk -F","...

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otfdump

OTFDUMP(1)							   User Commands							OTFDUMP(1)

NAME

       otfdump - otfdump

DESCRIPTION

	      otfdump - convert otf traces or parts of it into a human readable, long

	      version

	      Options:

       -h, --help
	      show this help message

       -V     show OTF version

       -f <n> set max number of filehandles available (default: 50)

       -o <file>
	      output file if the ouput file is unspecified the stdout will be used

       --num <a> <b>
	      output only records no. [a,b]

       --time <a> <b> output only records with time stamp in [a,b]

       --nodef
	      omit definition records

       --noevent
	      omit event records

       --nostat
	      omit statistic records

       --nosnap
	      omit snapshot records

       --nomarker
	      omit marker records

       --nokeyvalue
	      omit key-value pairs

       --fullkeyvalue show key-value pairs including the contents
	      of byte-arrays

       --procs <a>
	      show only processes <a> <a> is a space-seperated list of process-tokens

       --records <a>
	      show  only  records  <a>	<a> is a space-seperated list of record-type-numbers record-type-numbers can be found in OTF_Definitions.h
	      (OTF_*_RECORD)

       -s, --silent
	      do not display anything except the time otfdump needed to read the tracefile

otfdump 1.10.2							     May 2012								OTFDUMP(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Count No of Records in File without counting Header and Trailer Records

Discussion started by: guiguy

2. Shell Programming and Scripting

Help needed in removing intermediate segments from a pipe delimited segment file

Discussion started by: naren_0101bits

3. UNIX for Advanced & Expert Users

unix script for update or insert records from a file to a oracle table

Discussion started by: unihp1

4. UNIX for Dummies Questions & Answers

update records in a file using shell script...

Discussion started by: new_learner