I'm writing a script to automate some post-install tasks on RHEL4 servers.
I need the following code to insert an 'A' in the middle of a string, then replace the string in a file. I know I can use sed to do this, but I'd like to use perl's in place edit so I don't have to write to a temp file,... (1 Reply)
Hi ,
Can anybody explain how this perl one liner works..
It is to test whether the number is prime or not
perl -le 'print "PRIME" if (1 x shift) !~ /^(11+)\1+$/' 19
Thanks in advance
Shihab (2 Replies)
Thanks for giving your time and effort to answer questions and helping newbies like me understand awk.
I have a huge file, millions of lines, so perl takes quite a bit of time, I'd like to convert these perl one liners to awk.
Basically I'd like all lines with ISA sandwiched between... (9 Replies)
can someone help me translate the following command, from:
/usr/bin/awk "/^$TOFDAYM $TOFDAYD /,0" $LOGFILE
to something like
perl -e .....
basically, i want to use perl to do awk functions within a shell script. i want to do the above awk, using perl.
any suggestions? (9 Replies)
hello,
I want to replace awk with a perl one liner in unix.
i use in awk REGEX and FS ( field separator) because
awk syntaxes in different unix os versions have not the same behaviour.
Awk, Nawk and GNU Awk Cheat Sheet - good coders code, great reuse
i have a file named "file" and want... (5 Replies)
Not quite a unix question but problem in a perl command. Taking a chance if someone knows about the error
cat 1
a b c d
perl -p -e 's/a/b/g' 1
b b c d
What is the problem here??
perl -p -i -e 's/a/b/g' 1
Can't remove 1: Text file busy, skipping file. (2 Replies)
Hi all,
I need a Perl one liner which prints a newline into a .txt file, only where the line starts with "/mediawiki-1.19.0/". It should add the newline to the line before.
My problem is, when I try to realize this (with my little knowledge :rolleyes: ) i come to the point where the // are... (4 Replies)
Greetings fellow scripters.
I find myself editing multiple files, sometimes with the same bits of information. My bash script, a changelog, and a plist file (OS X). Once I realized this, I thought why not script part of this process (and so it begins). In any case, I've solved several of the... (1 Reply)
Hi
I have an inherited perl script that extracts the first three octets of an IP Address using a combination of split() against a dot and then builds it all back together again, its a whole block of code to do this
I wondered if anyone had a one liner in their arsenal to extract the first... (7 Replies)
Discussion started by: hcclnoodles
7 Replies
LEARN ABOUT DEBIAN
jifty::dbi::record::cachable
Jifty::DBI::Record::Cachable(3pm) User Contributed Perl Documentation Jifty::DBI::Record::Cachable(3pm)NAME
Jifty::DBI::Record::Cachable - records with caching behavior
SYNOPSIS
package Myrecord;
use base qw/Jifty::DBI::Record::Cachable/;
DESCRIPTION
This module subclasses the main Jifty::DBI::Record package to add a caching layer.
The public interface remains the same, except that records which have been loaded in the last few seconds may be reused by subsequent fetch
or load methods without retrieving them from the database.
METHODS
flush_cache
This class method flushes the _global_ Jifty::DBI::Record::Cachable cache. All caches are immediately expired.
_flush_key_cache
Blow away this record type's key cache
load_from_hash
Overrides the implementation from Jifty::DBI::Record to add caching.
load_by_cols
Overrides the implementation from Jifty::DBI::Record to add caching.
_cache_config
You can override this method to change the duration of the caching from the default of 5 seconds.
For example, to cache records for up to 30 seconds, add the following method to your class:
sub _cache_config {
{ 'cache_for_sec' => 30 }
}
AUTHOR
Matt Knopp <mhat@netlag.com>
SEE ALSO
Jifty::DBI, Jifty::DBI::Record
perl v5.14.2 2010-09-21 Jifty::DBI::Record::Cachable(3pm)