I am using a DEC ALPHA running Digital UNIX (formly DEC OSF/1) and ksh. I have a directory with hundreds of files that only share the extension .rpt. I would like to search that directory based on serial number and operation number and only files that meet both requirements to be printed out. I... (6 Replies)
Hi All,
I have written the below script that searches for the pattern in a file and delete them if present. please can some one have a look and suggest the changes in the script.
#!bin/sh
# The pattern that user want to add to the files
echo "Enter the pattern of the redirect"
read... (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)
Hi,
I want to list the files containing a no of pattern
like for single string i can use
grep -l "string" *
This command will enlist the files containg this string. Similarly i would like to use for multiple string.
I like to enlist file names having string1 and string 2
Can... (3 Replies)
Hi All,
I have a file in which i have to search for a pattern from the beginning of the file and if the pattern is found , then i have to perform a reverse search from that line to the beginning of the file to get the first occurrence of another pattern.
sample input file
hey
what are you... (8 Replies)
Hi,
I have to write one script that has to search a list of numbers in certain zipped files.
For eg. one file file1.txt contains the numbers. File1.txt contains 5,00,000 numbers and I have to search each number in zipped files(The number of zipped files are around 1000 each file is 5 MB)
I have... (10 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,
We have created a script that would accept the an indicator as a parameter and archive files present in a directory. The indicator would drive what the name pattern of the files to be archived should be.
If the indicator is 1, then the pattern to look out for is FACT*.
If the indicator is... (2 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)