OR may be like this:
as above one will not print lines between patterns (as shown below). The only thing with this is that, there has to be starting pattern, otherwise (if starting pattern is not found) everything upto Ending pattern will be printed
Hi,
I need to cut values after searching for similar patterns in a file. For example, I have the following pattern in a file:
####<Nov12 2007> <user: Vijay> <user id:123456 college:anna univ> <error code: runtime exception>
I need the values for
date:
User:
User id:
College:... (5 Replies)
how can I search for two or more patterns in one line using grep?
for example if I want to show only the lines that have patterns "abc" and "123"?
and what if I want to show only the lines that have either "abc" or "123" in them?
any hint apprecited (4 Replies)
Hi Gurus,
I have a file say for ex. file1 which has 3500 lines in it which are different account numbers and another file (file2) which has 230000 lines in it. I want to read all the lines in file1 and delete all those lines from file2 which has that same pattern as in file1. I am not quite... (4 Replies)
I have a situation where I need to search for multiple strings (error messages) such as 'aborted' 'file not found' etc in directory having logs. I have put all the error messages in a text file and using the command.
grep -f <textfile> <filetobegrepped>
I'm doing this thru a script where I... (5 Replies)
Hi,
I'm struggling to find an option for gzgrep to grep compressed files for multiple patterns preferanly using a pattern file (so pattern file can be altered seperately to rest of script).
My regex patterns are say:
4\{15\}
3\{13\}
/usr/xpg4/bin/grep will accept -f option but... (4 Replies)
Hi,
I have code like:
Output it is comming as:
Rels: WM2
Rels: WG2
Rels: 5
- pre/prods.pl
Rels: 6
Rels: 7
Rels: 8
Rels: 10
Rels: Int
But i want only "Rels: 5" pattern Just above "- pre/prods.pl".
By... (7 Replies)
Hi,
I need help to find patterns that are common or matched in a specified column in multiple files.
File1.txt
ID1 555
ID23 8857
ID4 4454
ID05 555
File2.txt
ID74 4454
ID96 555
ID322 4454 (4 Replies)
Hi,
I want to grep multiple patterns from multiple files and save to multiple outputs. As of now its outputting all to the same file when I use this command.
Input : 108 files to check for 390 patterns to check for. output I need to 108 files with the searched patterns.
Xargs -I {} grep... (3 Replies)
Hello,
I have attached 2 files
1) Original_table_definition.txt => which has definition of 3 tables
2) describe_table_output.txt => which has again 3 tables definition gotten thorugh doing a show table or describe table way.
Now difference between 3 tables are that tablea has no... (2 Replies)
Discussion started by: nv186000
2 Replies
LEARN ABOUT REDHAT
pcregrep
PCREGREP(1) General Commands Manual PCREGREP(1)NAME
pcregrep - a grep with Perl-compatible regular expressions.
SYNOPSIS
pcregrep [-Vcfhilnrsvx] pattern [file] ...
DESCRIPTION
pcregrep searches files for character patterns, in the same way as other grep commands do, but it uses the PCRE regular expression library
to support patterns that are compatible with the regular expressions of Perl 5. See pcre(3) for a full description of syntax and semantics.
If no files are specified, pcregrep reads the standard input. By default, each line that matches the pattern is copied to the standard out-
put, and if there is more than one file, the file name is printed before each line of output. However, there are options that can change
how pcregrep behaves.
Lines are limited to BUFSIZ characters. BUFSIZ is defined in <stdio.h>. The newline character is removed from the end of each line before
it is matched against the pattern.
OPTIONS -V Write the version number of the PCRE library being used to the standard error stream.
-c Do not print individual lines; instead just print a count of the number of lines that would otherwise have been printed. If sev-
eral files are given, a count is printed for each of them.
-ffilename
Read patterns from the file, one per line, and match all patterns against each line. There is a maximum of 100 patterns. Trailing
white space is removed, and blank lines are ignored. An empty file contains no patterns and therefore matches nothing.
-h Suppress printing of filenames when searching multiple files.
-i Ignore upper/lower case distinctions during comparisons.
-l Instead of printing lines from the files, just print the names of the files containing lines that would have been printed. Each
file name is printed once, on a separate line.
-n Precede each line by its line number in the file.
-r If any file is a directory, recursively scan the files it contains. Without -r a directory is scanned as a normal file.
-s Work silently, that is, display nothing except error messages. The exit status indicates whether any matches were found.
-v Invert the sense of the match, so that lines which do not match the pattern are now the ones that are found.
-x Force the pattern to be anchored (it must start matching at the beginning of the line) and in addition, require it to match the
entire line. This is equivalent to having ^ and $ characters at the start and end of each alternative branch in the regular
expression.
SEE ALSO pcre(3), Perl 5 documentation
DIAGNOSTICS
Exit status is 0 if any matches were found, 1 if no matches were found, and 2 for syntax errors or inacessible files (even if matches were
found).
AUTHOR
Philip Hazel <ph10@cam.ac.uk>
Last updated: 15 August 2001
Copyright (c) 1997-2001 University of Cambridge.
PCREGREP(1)