Hallo
I have maybe a little bit advanced request....
I need to choose one random part betwen %....
so i have this..
%
text1 text1 text1
text1 text1 text1
text1 text1 text1
%
text2 text2
text2 text2 text2
%
text3 text3 text3
tetx3
%
this choose text between %
awk ' /%/... (8 Replies)
Hi,
I have written a choice based shell script some thing like this:
if (y)
execute code
....
fi
else if(n)
terminating
the problem with the above scripting is it will work as far as the options are y or n.
but i want to reiterate the same code when the user inputs something else... (1 Reply)
Hi
I am new to expect. Please if any one can help on my issue its really appreciable. here is my issue:
I want expect script for random passwords and random commands generation.
please can anyone help me?
Many Thanks in advance (0 Replies)
Hello,
I want to choose random columns from big file.
for example: My file contain around 21000 columns and I want to randomly extract 4000 columns from this file.
Anybody has a solution (may be one liner or a function in perl or awk) for this?
Thanks,
R (2 Replies)
Need to use dd to generate a large file from a sample file of random data. This is because I don't have /dev/urandom.
I create a named pipe then:
dd if=mynamed.fifo do=myfile.fifo bs=1024 count=1024
but when I cat a file to the fifo that's 1024 random bytes:
cat randomfile.txt >... (7 Replies)
Dear folks
I have a large data set which contains 400K columns. I decide to select 50K determined columns from the whole 400K columns. Is there any command in unix which could do this process for me? I need to also mention that I store all of the columns id in one file which may help to select... (5 Replies)
Hi,
I need to write a bash script that will random choose and login into these below ip addresses.
192.168.116.130
192.168.116.131
192.168.116.132
192.168.116.133
I'm new into scripting and I need to enhance my logic. Below is what i did
... (4 Replies)
Okay, I have an Asus A8NSLI board with an Athlon 64 and I dunno, maybe 8gig Ram and Windows has crashed for the last time so I've finally had enough and I'll make it a Unix machine.
I have a new 1Tera drive and I'm all set to go.
Which brand of Unix/Linux can you advise me to go for?
The... (3 Replies)
Discussion started by: abrogard
3 Replies
LEARN ABOUT OSX
erb
ERB(1) Ruby Programmers Reference Guide ERB(1)NAME
erb -- Ruby Templating
SYNOPSIS
erb [--version] [-UPdnvx] [-E ext[:int]] [-S level] [-T mode] [-r library] [--] [file ...]
DESCRIPTION
erb is a command line front-end for ERB library, which is an implementation of eRuby.
ERB provides an easy to use but powerful templating system for Ruby. Using ERB, actual Ruby code can be added to any plain text document for
the purposes of generating document information details and/or flow control.
erb is a part of Ruby.
OPTIONS --version Prints the version of erb.
-E external[:internal]
--encoding external[:internal]
Specifies the default value(s) for external encodings and internal encoding. Values should be separated with colon (:).
You can omit the one for internal encodings, then the value (Encoding.default_internal) will be nil.
-P Evaluates lines starting with % as Ruby code and removes the tailing EOLs.
-S level Specifies the safe level in which eRuby script will run.
-T mode Specifies trim mode (default 0). mode can be one of
0 EOL remains after the embedded ruby script is evaluated.
1 EOL is removed if the line ends with %>.
2 EOL is removed if the line starts with <% and ends with %>.
- EOL is removed if the line ends with -%>. And leading whitespaces are removed if the erb directive starts with
<%-.
-U can be one of Sets the default value for internal encodings (Encoding.default_internal) to UTF-8.
-d
--debug Turns on debug mode. $DEBUG will be set to true.
-h
--help Prints a summary of the options.
-n Used with -x. Prepends the line number to each line in the output.
-v Enables verbose mode. $VERBOSE will be set to true.
-x Converts the eRuby script into Ruby script and prints it without line numbers.
EXAMPLES
Here is an eRuby script
<?xml version="1.0" ?>
<% require 'prime' -%>
<erb-example>
<calc><%= 1+1 %></calc>
<var><%= __FILE__ %></var>
<library><%= Prime.each(10).to_a.join(", ") %></library>
</erb-example>
Command
% erb -T - example.erb
prints
<?xml version="1.0" ?>
<erb-example>
<calc>2</calc>
<var>example.erb</var>
<library>2, 3, 5, 7</library>
</erb-example>
SEE ALSO ruby(1).
And see ri(1) documentation for ERB class.
REPORTING BUGS
Security vulnerabilities should be reported via an email to <security@ruby-lang.org>. Reported problems will be published after being fixed.
And you can report other bugs and feature requests via the Ruby Issue Tracking System (http://bugs.ruby-lang.org). Do not report security
vulnerabilities via the system because it publishes the vulnerabilities immediately.
AUTHORS
Written by Masatoshi SEKI.
UNIX November 7, 2012 UNIX