03-05-2013
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi, I need a script that loops through all the files two directories
passed to it via parameter, and if two files have the same name, do a
cmp comparison on the files. If the files are different, output the
specifics returned by cmp. What's the best way to go about writing
this, as I am a... (6 Replies)
Discussion started by: herman404
6 Replies
2. UNIX for Dummies Questions & Answers
Say for example I have a list of numbers..
5
10
13
48
1
could I use grep to show only those numbers that are above 10? For various reasons I can only use grep... not awk or sed etc. (7 Replies)
Discussion started by: Uss_Defiant
7 Replies
3. Shell Programming and Scripting
I have two files.And a sort of matrix analysis.
Both files have a string followed by two numbers:
File 1:
A 2 7
B 3 11
C 5 10
......
File 2:
X 1 10
Y 3 5
Z 5 9
What I'd like to do is for each set of numbers in the second file indicate if the first or second number (or both) in... (7 Replies)
Discussion started by: dcfargo
7 Replies
4. Shell Programming and Scripting
So, I have no formal higher education in programming at all and am self taught. I am now wondering what would be considered best practices? Like should I hard code a variable, then compare it to what I want to know or achieve, or should I just put the commands with in the brackets?
Example, a... (5 Replies)
Discussion started by: tlarkin
5 Replies
5. UNIX for Dummies Questions & Answers
Hi guys,
Im trying to figure out what is the difference between using a | and the command xargs ... examples of usage:
1) ls * | wc -w => this gives you the number of files in the current directory including all subdirectories
2) find . “*.log” | xargs grep ERROR => this gives... (6 Replies)
Discussion started by: avidrunner
6 Replies
6. Shell Programming and Scripting
Can someone please tell me what is wrong with this stings comparison?
#!/bin/sh
#set -xv
set -u
VAR=$(ping -c 5 -w 10 google.com | grep icmp_req=5 | awk '{print $6}')
echo I like cookies
echo $VAR
if "$VAR" == 'icmp_req=5'
then
echo You Rock
else
echo You Stink
fiThis is the error.... (6 Replies)
Discussion started by: cokedude
6 Replies
7. UNIX for Dummies Questions & Answers
I'd love to get help on this one please. Ok so say I have a file called README with lines such as this:
index:index.html
required:file1.1:file2.1:file3.1
I'm having trouble with writing an if statement that compares the items in a list with a file inside README, what I imagine in my head... (7 Replies)
Discussion started by: mistsong1
7 Replies
8. Shell Programming and Scripting
Hi,
I have 25 groups and I need to perform all possible pairwise compariosns between them using the formula n(n-1)/2. SO in my case it will be 25(25-1)/2 which is equal to 300 comparisons.
my 25 groups are
FG1 FG2 FG3 FG4 FG5
NT5E CD44 CD44 CD44 AXL
ADAM19 CCDC80 L1CAM L1CAM CD44... (1 Reply)
Discussion started by: Diya123
1 Replies
9. Shell Programming and Scripting
Hi all,
I want to compare two files based on column value
Kindly help me
a.txt
123,ABCD
456,DEF
789,SDF
b.txt
123,KJI
456,LMN
321,MJK
678,KOL
Output file should be like
Common on both files
c.txt
123,ABCD,KJI (8 Replies)
Discussion started by: aaysa123
8 Replies
10. Shell Programming and Scripting
Here is the sample code:
str1="abccccc"
str2="abc?"
if ]; then
echo "same string"
else
echo "different string"
fi
Given that ? implies 0 or 1 match of preceding character, I was expecting the output to be "different string", but I am seeing "same string".
Am I not using the... (3 Replies)
Discussion started by: Rameshck
3 Replies
LEARN ABOUT DEBIAN
email::date
Email::Date(3pm) User Contributed Perl Documentation Email::Date(3pm)
NAME
Email::Date - Find and Format Date Headers
SYNOPSIS
use Email::Date;
my $email = join '', <>;
my $date = find_date($email);
print $date->ymd;
my $header = format_date($date->epoch);
Email::Simple->create(
header => [
Date => $header,
],
body => '...',
);
DESCRIPTION
RFC 2822 defines the "Date:" header. It declares the header a required part of an email message. The syntax for date headers is clearly
laid out. Stil, even a perfectly planned world has storms. The truth is, many programs get it wrong. Very wrong. Or, they don't include a
"Date:" header at all. This often forces you to look elsewhere for the date, and hoping to find something.
For this reason, the tedious process of looking for a valid date has been encapsulated in this software. Further, the process of creating
RFC compliant date strings is also found in this software.
FUNCTIONS
find_date
my $time_piece = find_date $email;
"find_date" accepts an email message in any format Email::Abstract can understand. It looks through the email message and finds a date,
converting it to a Time::Piece object.
If it can't find a date, it returns false.
"find_date" is exported by default.
format_date
my $date = format_date; # now
my $date = format_date( time - 60*60 ); # one hour ago
"format_date" accepts an epoch value, such as the one returned by "time". It returns a string representing the date and time of the
input, as specified in RFC 2822. If no input value is provided, the current value of "time" is used.
"format_date" is exported by default.
format_gmdate
my $date = format_gmdate;
"format_gmdate" is identical to "format_date", but it will return a string indicating the time in Greenwich Mean Time, rather than
local time.
"format_gmdate" is exported on demand, but not by default.
PERL EMAIL PROJECT
This module is maintained by the Perl Email Project
<http://emailproject.perl.org/wiki/Email::Date>
SEE ALSO
Email::Abstract, Time::Piece, Date::Parse, perl.
AUTHOR
Casey West, <casey@geeknest.com>.
Ricardo SIGNES, <rjbs@cpan.org>.
COPYRIGHT
Copyright (c) 2004 Casey West. All rights reserved.
This module is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
perl v5.10.1 2007-12-01 Email::Date(3pm)