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UNIX for Beginners Questions & Answers
Grep command to show the number of results
Post 303042551 by abdossamad2003 on Sunday 29th of December 2019 09:06:17 AM
12-29-2019
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When I type a command at the command line it supplies one result and the exact same command in a script
egrep '^01|^02|^03|^04' file > fileout
count = 29353
same count in the script yields a count of 23492
is there any reason this could be happening. (1 Reply)
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Hi,
I have a log file without date/time, and I want that everytime tail|grep find something it displays the date/time and the line. I have tried something like this command but without any luck to display the date/time:
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I'm using the command grep -l XYZ to get a list of files containing the string XYZ. Then I using the comand ls -l ABC to get the create date timestamp of the each file. I've tried combining the comands using the pipe command, grep -l XYZ | ls -l, but its not working. What am I doing wrong? (3 Replies)
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Can I modify the grep command to show only a process name?
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Hi,
I am currently reading a tar file and searching for a particular word using grep e.g. Plane. At the moment, if a sentence is found with the word "Plane" the sentence itself is piped to another file.
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Hello Guys,
I have created function which is as follow:
tail -f filename |grep "Key word"
output from this command
19-11-2011 21:09:15,234 - INFO Numbement - error number:result = :11
19-11-2011 21:09:15,286 - INFO Numbement - error number:result = :11
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Hi,
i have a file hello.log which as several line that look like the below
2015-12-07 09:46:56 0:339 120.111.12.12 POST /helloWorld
2015-12-07 09:46:57 0:439 122.111.12.12 POST /helloWorld
....
when i grep expecting to see results like the below.
... (6 Replies)
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LEARN ABOUT REDHAT
lsdiff
LSDIFF(1) LSDIFF(1) NAME
lsdiff - show which files are modified by a patch SYNOPSIS
lsdiff [-n] [-p n] [--strip=n] [--addprefix=PREFIX] [-s] [-i PATTERN] [-x PATTERN] [-v] [file...] lsdiff {--help | --version | --filter ... | --grep ...} DESCRIPTION
List the files modified by a patch. You can use both unified and context format diffs with this program. OPTIONS
-n Display the line number that each patch begins at. If verbose output is requested, each hunk of each patch is listed as well. For each file that is modified, a line is generated containing the line number of the beginning of the patch, followed by a Tab character, followed by the name of the file that is modified. If -v is given, following each of these lines will be one line for each hunk, consisting of a Tab character, the line number that the hunk begins at, another Tab character, the string ``Hunk #'', and the hunk number (starting at 1). -p n When matching, ignore the first n components of the pathname. --strip=n Remove the first n components of the pathname before displaying it. --addprefix=PREFIX Prefix the pathname with PREFIX before displaying it. -s Show file additions, modifications and removals. A file addition is indicated by a ``+'', a removal by a ``-'', and a modification by a ``!''. -i PATTERN Include only files matching PATTERN. -x PATTERN Exclude files matching PATTERN. -v Verbose output. --help Display a short usage message. --version Display the version number of lsdiff. --filter Behave like filterdiff(1) instead. --grep Behave like grepdiff(1) instead. SEE ALSO
filterdiff(1), grepdiff(1) EXAMPLES
To sort the order of touched files in a patch, you can use: lsdiff patch | sort -u | xargs -rn1 filterdiff patch -i To show only added files in a patch: lsdiff -s patch | grep '^+' | cut -c2- | xargs -rn1 filterdiff patch -i To show the headers of all file hunks: lsdiff -n patch | (while read n file do sed -ne "$n,$(($n+1))p" patch done) AUTHOR
Tim Waugh <twaugh@redhat.com>. patchutils 13 May 2002 LSDIFF(1)