extract a line from a file using the line number Post: 302082876

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Extract a line from a file using the line number

I have a shell script and want to assign a value to a variable. The value is the line exctrated from a file using the line number. The line number it is not fix, and could change any time. I have tried sed, awk, head .. See my script # Get randome line number from the file #selectedline = `awk...

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how to get the data from line number 1 to line number 100 of a file

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How to read contents of a file from a given line number upto line number again specified by user

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Hi, I search all forum, but I can not find solutions of my problem :( I have multiple files (5000 files), inside there is this data : FILE 1: 1195.921 -898.995 0.750312E-02-0.497526E-02 0.195382E-05 0.609417E-05 -2021.287 1305.479-0.819754E-02 0.107572E-01 0.313018E-05 0.885066E-05 ...

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extract a line from a file by line number

Hi guys, does anyone know how to extract(grep) a line from the file, if I know the line number? Thanks a lot.

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HELP: Shell Script to read a Log file line by line and extract Info based on KEYWORDS matching

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Perl to extract information from a file line by line

In the below perl code I am using tags within each line to extract certain information. The tags that are used are: STB >0.8 is STRAND BIAS otherwise GOOD FDP is the second number GO towards the end of the line is read into an array and the value returned is outputed, in the first line that...

LEARN ABOUT REDHAT

unwrapdiff

UNWRAPDIFF(1)															     UNWRAPDIFF(1)

NAME

       unwrapdiff - demangle word-wrapped patches

SYNOPSIS

       unwrapdiff [-v] [file...]

       unwrapdiff {--help | --version}

DESCRIPTION

       unwrapdiff demangles patches that have been word-wrapped, in an attempt to make them useful.

       The  corrected  diff is sent to standard output. Note that you will probably need to use the -l option when applying the patch, in order to
       ignore any whitespace differences there may be.

OPTIONS

       -v     Verbose operation. A list of lines that are modified in a way that might be wrong is sent to stderr.

       --help Display a short usage message.

       --version
	      Display the version number of unwrapdiff.

LIMITATIONS

       Some heuristics are used to decide whether use a space to recombine a wrapped line, or just join them together. Currently this is  done	by
       comparing with last three characters of a line with the first two characters of its continuation, and using a space of any of them are dif-
       ferent.

       The patch needs to have been valid before being word-wrapped.

       The last line of a hunk is nearly always ambiguous. If the next line begins ``@@'', ``Index:'', ``diff'' or ``---'' then it is taken to	be
       complete; otherwise it is unwrapped using the next line.

AUTHOR

       Tim Waugh <twaugh@redhat.com>.

patchutils							  17 January 2003						     UNWRAPDIFF(1)

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