Deleting lines from a file Post: 84052

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deleting lines in a log file

Is there an easy way to delete the first so many lines in a log file? like I have a log file that has 10000 lines, i want to just get rid of the first 9000.

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Hi I have a file & always I need to remove or delete last 2 lines from that file. So in a file if I have 10 lines then it should return me first 8 lines. Can someone help me?

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Deleting lines in a file

How do I delete all the lines after the line containing text ***DISCLOSURES*** . I want to delete this line too. Thank you

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HI I'm looking to delete lines ending with .tk from below data file --------- abc.tk mgm.tk dtk mgmstk ------ I have written below code ---- sed '/.tk *$/d' dat_file.txt > temp.txt ---- But its deleting all the lines ending with tk. I need to delete only the lines ending .tk my...

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deleting lines from file

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Good morning!!! Im a newbie with shell programing and i was wondering if there is a way to delete certain new lines from a file, here is an example of my current file: >seq_0 GTGAGATTGCTAATGAGCTGCTTTTAGGGGGCGTGTTGTGCTTGCTTTCC AACTTTTCTAGATTGATTCTACGCTGCCTCCAGCAGCCACCCCTCCCATC...

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Re: Deleting lines from big file.

Hi, I have a big (2.7 GB) text file. Each lines has '|' saperator to saperate each columns. I want to delete those lines which has text like '|0|0|0|0|0' I tried: sed '/|0|0|0|0|0/d' test.txt Unfortunately, it scans the file but does nothing. file content sample:...

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Deleting specific lines in a file

Hello, I have a file filled with dates, such as: 04-08-2011 message 04-08-2011 message 03-08-2011 message 01-08-2011 message 31-07-2011 message 24-07-2011 message 15-07-2011 message 13-12-2008 message 26-11-2007 message And I want to delete those lines whose date is older than 10...

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Deleting selected lines in a file

Hi Guys , I have two files say a1 and a2 having following contents a1 dag wfd a2 dag wfd chire hcm I want to delete only the lines in a2 which are in a1 and final output of a2 should be a2 chire hcm

LEARN ABOUT LINUX

envext

ENVEXT(1)						  The Canonical Csound Reference						 ENVEXT(1)

NAME

       envext - Extracts the envelope of a file to a text file. .

SYNTAX

	   envext [-flags] soundfile

	   csound -U envext [-flags] soundfile

INITIALIZATION

       soundfile - Name of the input soundfile.

       The following flags are available for envext (The default values are stated in parenthesis):
	   -o fnam Name of output filename (newenv)
	   -w size (in seconds) of analysis window (0.25)

       The envext utility generates a text file containing time and amplitude pairs by finding the absolute peak within each window.

EXAMPLE

       Using the command (while in the manual directory):

	   csound -U envext examples/mary.wav

       will produce the a text file containing the following:

	     0.000   0.000
	     0.000   0.000
	     0.250   0.000
	     0.500   0.000
	     0.750   0.000
	     1.249   0.170
	     1.499   0.269
	     1.530   0.307
	     1.872   0.263
	     2.056   0.304
	     2.294   0.241
	     2.570   0.216
	     2.761   0.178
	     3.077   0.011
	     3.251   0.001
	     3.500   0.000

       Which shows the time for the peak amplitude within each measured window.

CREDITS

       Author: John ffitch

       1995

AUTHORS

       Barry Vercoe
       MIT Media Lab

	   Author.

       Dan Ellis
       MIT Media Lab,
		 Cambridge
		 Massachussetts

	   Author.

COPYRIGHT

5.07								    06/23/2009								 ENVEXT(1)

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deleting lines in a log file

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Deleting lines in a file

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Deleting whole lines from a file

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