I have a file that is dynamic in length, and I need to parse the second field out of it, then split that into groupings of 20 entries and echo a variable above each grouping of 20. The script is written in bash. I am sure there is a way to use awk, but my awk book is at home, and I am out of town.... (1 Reply)
The following C++ code segment is not working in debug mode build on HP-UNIX machine. It is not printing "Hello World" message on the screen. While it is working fine in release mode build.
==============================================
class KLogStreamBuf : public streambuf {
public:... (0 Replies)
Hi All,
I need to reorder the sequence of line groupings - specifically the output
from a bank QIF (Quicken Interchange Format) export.
Sample is like this:
!Type:Bank
D12/05/2008
T-10.00
N1
Details of Charge 1
^
D07/05/2008
T-20.00
N2
Details of Charge 2
^
D17/04/2008
T-30.00 (0 Replies)
The binary file is
ELF-64 executable object file - IA64.
How i know that the source is
Is there any comamnd in unix i can read these kind of files or use a thirty party software?
Thanks for your help (8 Replies)
I am new to PHP and UNIX. I am using Apache to do my testing on a Windows Vista machine.
I am getting this error when I am trying to connect to a web service. I did a search and did not see any posts that pertain to this.
Here is my function:
<?php
function TRECSend($a, $b, $c, $d,... (0 Replies)
Hi All,
I have a big file (basically .log file) want to store in oracle database.
Please help me in preparing CLOB object in unix.
The log file is stored in some location on unix file server, prepare clob of that file and store in DB.
Any sample code or link
Thanks
Rajesh (1 Reply)
Task A: Make a one-line Unix command - using pipe(s) - to display the number of files in your home directory including the hidden files that begin with '.'
Task B:Make a one-line Unix command - using pipe(s) - to display the number of unique zip codes in famous.dat (hint: use -u on sort)
Task... (1 Reply)
How to initialize an object of class say "A", with an object of type say "B".
The following code give the error message "error: conversion from âAâ to non-scalar type âBâ requested"
#include <iostream>
using namespace std;
class B;
class A{
public:
A() { cout <<"\nA()" << endl; }
... (1 Reply)
Is it possible to use an object code compiled on Unix- sun Os sparc on Redhat linux OS. In our new application we have to create object file on Unix os and then use the object code on Linux OS to compile pro*c code but when we are trying to achieve this we get error: file in wrong format. how can... (3 Replies)
Discussion started by: vivek chaudhary
3 Replies
LEARN ABOUT MOJAVE
perlrequick5.18
PERLREQUICK(1) Perl Programmers Reference Guide PERLREQUICK(1)NAME
perlrequick - Perl regular expressions quick start
DESCRIPTION
This page covers the very basics of understanding, creating and using regular expressions ('regexes') in Perl.
The Guide
Simple word matching
The simplest regex is simply a word, or more generally, a string of characters. A regex consisting of a word matches any string that
contains that word:
"Hello World" =~ /World/; # matches
In this statement, "World" is a regex and the "//" enclosing "/World/" tells Perl to search a string for a match. The operator "=~"
associates the string with the regex match and produces a true value if the regex matched, or false if the regex did not match. In our
case, "World" matches the second word in "Hello World", so the expression is true. This idea has several variations.
Expressions like this are useful in conditionals:
print "It matches
" if "Hello World" =~ /World/;
The sense of the match can be reversed by using "!~" operator:
print "It doesn't match
" if "Hello World" !~ /World/;
The literal string in the regex can be replaced by a variable:
$greeting = "World";
print "It matches
" if "Hello World" =~ /$greeting/;
If you're matching against $_, the "$_ =~" part can be omitted:
$_ = "Hello World";
print "It matches
" if /World/;
Finally, the "//" default delimiters for a match can be changed to arbitrary delimiters by putting an 'm' out front:
"Hello World" =~ m!World!; # matches, delimited by '!'
"Hello World" =~ m{World}; # matches, note the matching '{}'
"/usr/bin/perl" =~ m"/perl"; # matches after '/usr/bin',
# '/' becomes an ordinary char
Regexes must match a part of the string exactly in order for the statement to be true:
"Hello World" =~ /world/; # doesn't match, case sensitive
"Hello World" =~ /o W/; # matches, ' ' is an ordinary char
"Hello World" =~ /World /; # doesn't match, no ' ' at end
Perl will always match at the earliest possible point in the string:
"Hello World" =~ /o/; # matches 'o' in 'Hello'
"That hat is red" =~ /hat/; # matches 'hat' in 'That'
Not all characters can be used 'as is' in a match. Some characters, called metacharacters, are reserved for use in regex notation. The
metacharacters are
{}[]()^$.|*+?
A metacharacter can be matched by putting a backslash before it:
"2+2=4" =~ /2+2/; # doesn't match, + is a metacharacter
"2+2=4" =~ /2+2/; # matches, + is treated like an ordinary +
'C:WIN32' =~ /C:\WIN/; # matches
"/usr/bin/perl" =~ //usr/bin/perl/; # matches
In the last regex, the forward slash '/' is also backslashed, because it is used to delimit the regex.
Non-printable ASCII characters are represented by escape sequences. Common examples are " " for a tab, "
" for a newline, and "
" for a
carriage return. Arbitrary bytes are represented by octal escape sequences, e.g., "