Hello,
Can you explain why in the first 2 commands the awk does not print anything? Is it looking of a specific format ?
Thanks.
$ echo 12a3 | awk '($1>=2) {print $1}' # prints nothing
$ echo 123a | awk '($1>=2) {print $1}' # prints nothing
$ echo a123 | awk '($1>=2) {print $1}'
a123... (1 Reply)
I do not know how to do this unless I use a bunch of if statements. I need a script to replace numbers in each record in a file. I am really getting tangled in this web.
If a fieldA (19 positions) is greater than 14 digits, I have to change the data (resulting fieldA is fixed 19 postions).
If... (5 Replies)
Hi there,
I wanna define a variable 'tempbase'. Therefore I read a text file "base.out". "base.out" contains a list with four columns. 'tempbase' is the 4th entry in the line, where the first entry is equal to the predefined variable $orb1 and the second entry is equal to $orb2. I wrote the code... (2 Replies)
Hi there, here is my command
ssh host.local "/path/to/my/perscript/hostconfig.pl -s $HOST -d |awk '{if (\$4 > 120)print \"My error message\";exit}{s=0; for (i=1; i<=NF; i++) s++; if(s == 13) print \$3}'"
The problem is if conditional 1 is met (i.e $4 > 120), i don't see "My error message", the... (5 Replies)
Hi All,
I have a file with below contents.
"en2"/10.185.81.0:cluster_interconnect,"en5"/10.185.81.0:cluster_interconnect,"en6"/169.181.146.0:public
I want to take the interface name from the file and convert it as ipaddress using ifconfig command get the output like below
en6 ->... (2 Replies)
I'm having a problem pulling UID's from data. The data outputs a user's UID in one of three ways:
1. Error User user_name already assigned with <UID>
2. Success <UID> reserved for user_name
3. <a load of crap because there was a db failure yet somehow the UID is still in there>
I typically... (5 Replies)
Hello Friends,
I need to find some CDRs in production servers whose 1st field value and 2nd field value = 1 and 11th looks like 45.123... where there are more than 3 digits after comma.so i wrote a one liner, something like below but does not work, however when i used first and second conditions... (8 Replies)
hello gurus,
I want to use an associative array from a file to populate a field of another file, by matching several columns in order of priority. If the first column matches, then i dont want to match $2. Similarly I only want to match $3 when $1 and $2 are not in associative array.
For the... (6 Replies)
Discussion started by: ritakadm
6 Replies
LEARN ABOUT DEBIAN
ruby-build
RUBY-BUILD(1)RUBY-BUILD(1)NAME
ruby-build - compile and install Rubies
SYNOPSIS
ruby-build [-v|--verbose] [-k|--keep] definition prefix
ruby-build --definitions
ruby-build --version
ruby-build [-h|--help]
rbenv install [-k|--keep] definition
DESCRIPTION
ruby-build provides a simple way to compile and install different versions of Ruby on UNIX-like systems.
ruby-build downloads, builds and installs the Ruby version specified in a definition into a prefix directory. Definitions can be chosen
from the list of installed definitions or by specifying a file path for a definition.
rbenv(1) users can also use the provided rbenv install command, which installs Rubies into the rbenv directory.
OPTIONS --definitions
List available definitions.
-k, --keep
Don't delete source code after installation.
-v, --verbose
Display compiler messages on standard output.
--version
Show ruby-build version and exit.
-h, --help
Show usage information and exit.
EXAMPLES
Install Ruby 1.9.3 (MRI, patch level 0) to ~/rubies/mri-1.9.3
$ ruby-build 1.9.3-p0 ~/rubies/mri-1.9.3
Install Ruby Enterprise Edition 1.8.7 (patch level 2011.03) for rbenv(1):
$ rbenv install ree-1.8.7-2011.03
Install Ruby from a custom definition into ~/your-ruby:
$ rbenv install /path/to/your/own/ruby/definition ~/your-ruby
ENVIRONMENT
CC Sets the path to the C compiler.
CONFIGURE_OPTS
Options that are passed to configure when building a Ruby.
MAKE_OPTS
Options that are passed to make when building a Ruby.
MAKEOPTS
Used instead of MAKE_OPTS when MAKE_OPTS is not defined.
TMPDIR Sets the location where ruby-build stores temporary files.
RUBY_BUILD_BUILD_PATH
Sets the location in which sources are downloaded and built.
AUTHORS
ruby-build is developed by Sam Stephenson <sam@37signals.com>.
This man page was written for the Debian GNU/Linux distribution by Sebastian Boehm <sebastian@sometimesfood.org> but may be used by others.
SEE ALSO rbenv(1)
June 2012 RUBY-BUILD(1)