Grep regular expression Post: 303036271

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grep : regular expression

guys, my requirment goes like this: I have a file, and wish to filter out records where 1. The first letter is o or O and 2. The next 4 following letter should not be ther I do not wish to use pipe and wish to do it in one shot. The best expression I came up with is: grep ^*...

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regarding grep regular expression

When i do ls -ld RT_BP* i am getting the following list. drwxrwx--- 2 user group 256 Oct 17 10:09 RT_BP809 drwxrwx--- 2user group 256 Oct 17 10:09 RT_BP809.O drwxrwx--- 2 user group 256 Oct 17 10:09 RT_BP810 drwxrwx--- 2user group 256 Oct...

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Hi, guys. I have one question, hope somebody can give me a hand I have a file called passwd, the contents of it arebelow: *********************** ... goldsimj:x:5008:200: goldsij2:x:5009:200: whitej:x:5010:201: brownj:x:5011:202: goldsij3:x:5012:204: greyp:x:5013:203: ......

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grep regular expression

please can someone tell me what the following regrex means grep "^aa*$" <file> I thought this would match any word beginning with aa and ending with $, but it doesnt. Thanks in advance Calypso

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Help | unix | grep | regular expression

I have the following code: ls -al /bin | tr -s ' ' | grep 'x' ls -al: Lists all the files in a given director such as /bin tr -s ' ': removes additional spaces between characters so that there is only one space grep 'x': match all "x" characters that are followed by a whitespace. I was...

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Hi, Input file: -13- -1er- -1xyz1- -1xz12- -2ab1- -2ab2-- -143- Code: grep '^*\-' input.txt Wrong output: -13- -1xyz1- -2ab1- -2ab2--

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Hi all, How am I read a file, find the match regular expression and overwrite to the same files. open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat"; open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat"; while (<DESTINATION_FILE>) { # print...

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Grep + Regular expression or

Hi , I have few lines like A20120101.ANU.ZIP A20120401.ABC.ZIP A20120105.KJK.ZIP A20120809.JUG.ZIP A20120101.MAT.ZIP B20120301.ANU.XIP I want to filter by 1. Files starting with A and Ending With Z ( ^A.*.ZIP$) 2. And either ANU, or KJK or MAT in the file name. Hope my...

LEARN ABOUT CENTOS

aftellframe

AFSEEKFRAME(3)															    AFSEEKFRAME(3)

NAME

       afSeekFrame, afTellFrame - update or access the current sample frame position for a track in an audio file

SYNOPSIS

       #include <audiofile.h>

       AFframecount afSeekFrame(AFfilehandle file, int track,
	   AFframecount frameOffset);

       AFframecount afTellFrame(AFfilehandle file, int track);

PARAMETERS

       file is a valid audio file handle created by afOpenFile(3).

       track identifies an audio track within the file. track is always AF_DEFAULT_TRACK for all currently supported audio file formats.

       frameOffset is a sample frame offset. Valid sample frame offsets must be greater than or equal to zero and strictly less than the number of
       sample frames contained within the specified audio track. The special value -1 is also allowed.

DESCRIPTION

       afSeekFrame moves the logical file position for a specified audio track to a desired sample frame location. If frameOffset is -1,
       afSeekFrame will not modify the current file offset and will instead return the current file position.

       afTellFrame returns current file position in sample frames.

RETURN VALUE

       On success, afSeekFrame and afTellFrame will return the current file position as measured in sample frames from the start of the audio
       track. On failure, afSeekFrame and afTellFrame will return the value -1.

ERRORS

       The following errors can be generated by afSeekFrame or afTellFrame:

       AF_BAD_FILEHANDLE

	   file does not represent a valid file handle.

       AF_BAD_TRACK

	   track does not identify a valid track.

       AF_BAD_LSEEK
	   A call to lseek failed.

AUTHOR

       Michael Pruett <michael@68k.org>

Audio File Library 0.3.6					    03/06/2013							    AFSEEKFRAME(3)

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grep regular expression

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