little odd questions but i can try and answer a few of them.
because unix/linux is mostly command based your files will mostly be text based. this is why when you do a
Code:
cat more vi <file>
you are able to see the contents. similar to a .bat file in windows.
lets say this for example:
you have a script you need to run but you don't know what extension it uses (typically you wont need to know unless your writing the script) - but at the first line you'll see what application it's starting example : perl, ksh. sh, bash etc.
usually looks something like this:
Code:
#!/usr/bin/ksh
this tells the script that it's using "ksh" to run the script.
as for your last question.
unix/linux can be controlled with permissions much like windows, only thing is in unix/linux you'll need to be root in order to change anything i don't want other users to have access to, no exceptions. windows there are many ways to fool around and get access to a file that a user doesn't want you to see but this is one of the things as why unix/linux is a lot more secure. (of course there are other ways but i wont get into that )
basicly you set the permissions, owner, group to something only you have access to and then other users wont be able to read it, write, or execute.
that's a basic summary. remember for majority of these questions you can find the answers on google.
like i said it's a bit odd of a question and i'm not 100% sure how to answer it but this is my opinion of it "determines what file your using"
Hi Friends,
I'm a great fan of this forum... it has helped me tone my skills in shell scripting. I have a challenge here, which I'm sure you guys would help me in achieving...
File A has a list of job ids and I need to compare this with the File B (*.log) and File C (extend *.log) and copy... (6 Replies)
Hi,
I need to compare 2 text files with around 60000 rows and 1 column. I need to compare these and write the mismatch data to 3rd file.
File1 - file2 = file3
wc -l file1.txt
58112
wc -l file2.txt
55260
head -5 file1.txt
101214200123
101214700300
101250030067
101214100500... (10 Replies)
Shell script logic
Hi
I have 2 input files like with file 1 content as (file1)
"BRGTEST-242" a.txt "BRGTEST-240" a.txt "BRGTEST-219" e.txt
File 2 contents as fle(2)
"BRGTEST-244" a.txt "BRGTEST-244" b.txt "BRGTEST-231" c.txt "BRGTEST-231" d.txt "BRGTEST-221" e.txt
I want to get... (22 Replies)
Discussion started by: pottic
22 Replies
LEARN ABOUT DEBIAN
linux::distribution
Linux::Distribution(3pm) User Contributed Perl Documentation Linux::Distribution(3pm)NAME
Linux::Distribution - Perl extension to detect on which Linux distribution we are running.
SYNOPSIS
use Linux::Distribution qw(distribution_name distribution_version);
if(my $distro = distribution_name) {
my $version = distribution_version();
print "you are running $distro, version $version
";
} else {
print "distribution unknown
";
}
Or else do it OO:
use Linux::Distribution qw(distribution_name distribution_version);
my $linux = Linux::Distribution->new;
if(my $distro = $linux->distribution_name()) {
my $version = $linux->distribution_version();
print "you are running $distro, version $version
";
} else {
print "distribution unknown
";
}
DESCRIPTION
This is a simple module that tries to guess on what linux distribution we are running by looking for release's files in /etc. It now looks
for 'lsb-release' first as that should be the most correct and adds ubuntu support. Secondly, it will look for the distro specific files.
It currently recognizes slackware, debian, suse, fedora, redhat, turbolinux, yellowdog, knoppix, mandrake, conectiva, immunix, tinysofa,
va-linux, trustix, adamantix, yoper, arch-linux, libranet, gentoo, ubuntu, scientific, oracle enterprise linux and redflag.
It has function to get the version for debian, suse, fedora, redhat, gentoo, slackware, scientific, oracle enterprise linux, redflag and
ubuntu(lsb). People running unsupported distro's are greatly encouraged to submit patches :-)
EXPORT
None by default.
TODO
Add the capability of recognize the version of the distribution for all recognized distributions.
AUTHORS
Alexandr Ciornii <alexchorny@gmail.com>, <http://chorny.net> Alberto Re, <alberto@accidia.net> Judith Lebzelter, <judith@osdl.org>
COPYRIGHT AND LICENSE
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.5 or,
at your option, any later version of Perl 5 you may have available.
perl v5.14.2 2012-03-18 Linux::Distribution(3pm)
10-01-2012
)