06-26-2011
How to check if an application has been installed on a unix/linux box?
hi, guys,
now I face a problem. I have developed an application, and when it starts, it shall check if an application has been installed on the running linux/unix. If result is positive, i do something with the application command.
just as an example: I want to check if sshd has been installed. this requirement is supposed to be distribution independent. So
on my Arch box, usually "sshd" can be found at /etc/rc.d/sshd
however on a debian/ubuntu box, it usually is located at /etc/init.d/sshd
is there a general way, say give me the "/etc/rc.d" or "/etc/init.d" directory on the system?
thanx
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Do you guys have any suggestions?
hpterm -e rlogin <another unix pc>
??? (1 Reply)
Discussion started by: jehrome_rando
1 Replies
2. UNIX for Dummies Questions & Answers
rshstatus=`rsh -n lilo /db/p2/oracle/names9208/restart_names.sh`
if $rshstatus <>0 then
errstatus=1
mailx -s "xirsol8dr" ordba@xxx.com >> $log_dr
else if errstatus=0
echo "status to xirsol8dr successful"
can anyone provide if this is t he correct way to do this or is there a better way? (1 Reply)
Discussion started by: bpm12
1 Replies
3. Solaris
Hm am the perfect newbie:o
I handle an application on a production servers having a SunOS 5.8 and iplanet webserver instance. Users trying to access it on https are getting "Cannot find the server". I checked with the n/w and secuirty and they said traffic is allowed to the server. Everything... (6 Replies)
Discussion started by: JimmyJ
6 Replies
4. AIX
Hi all,
I had a large application created using Visual C++. I ported that application using WINE to the Linux platform (ofcourse x86). Now I have to port the same application to AIX which runs over IBM mainframe. I dont have mainframe available but it is required for me to port my application to... (1 Reply)
Discussion started by: noble_curious
1 Replies
5. Solaris
I am trying to list all the applications that is installed on my sun solaris box.
I have used the command pkginfo but it only give me the applications that was bundled with solaris. This machine runs oracle and pkginfo command does not list that.
Any idea to get to list all the applications... (1 Reply)
Discussion started by: ibroxy
1 Replies
6. Red Hat
Hi,
I need to query and find out if anyone is logged into a Linux box or if the Linux Box is free available for login. This information is required to post the availability of the Linux Host for an instrument for another user to start using the instrument.
Is there a command or script to query... (3 Replies)
Discussion started by: dks
3 Replies
7. UNIX for Dummies Questions & Answers
Hi , if I copy an application directory (with all its subdirectories) from one unix box to another (suppose same version), will that application work in the 2nd unix box? (3 Replies)
Discussion started by: me_saby
3 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I want to determine whether my java application is pointing to the OS version of Java or the User installed Java version on my Unix box.
I am aware of the "java -version" command, however I am unsure if the version returned is the OS one or the user one.
Please help.
Ali. (5 Replies)
Discussion started by: ali40
5 Replies
9. Shell Programming and Scripting
How can i check if sqlldr has been installed on my AIX/UNIX mechine?
Is there any unix script to check this one out.... (0 Replies)
Discussion started by: msrahman
0 Replies
10. UNIX for Beginners Questions & Answers
Hello Forum,
I'm issuing a one line bash command to look for the version of an installed application and saving the result to a variable like so:
APP=application --version
But if the application is not installed I want to return to my variable that the Application is not installed. So I'm... (2 Replies)
Discussion started by: greavette
2 Replies
LEARN ABOUT CENTOS
bundle-package
BUNDLE-PACKAGE(1) BUNDLE-PACKAGE(1)
NAME
bundle-package - Package your needed .gem files into your application
SYNOPSIS
bundle package
DESCRIPTION
Copy all of the .gem files needed to run the application into the vendor/cache directory. In the future, when running bundle install(1)
bundle-install.1.html, use the gems in the cache in preference to the ones on rubygems.org.
GIT AND PATH GEMS
Since Bundler 1.2, the bundle package command can also package :git and :path dependencies besides .gem files. This needs to be explicitly
enabled via the --all option. Once used, the --all option will be remembered.
REMOTE FETCHING
By default, if you simply run bundle install(1) bundle-install.1.html after running bundle package(1) bundle-package.1.html, bundler will
still connect to rubygems.org to check whether a platform-specific gem exists for any of the gems in vendor/cache.
For instance, consider this Gemfile(5):
source "https://rubygems.org"
gem "nokogiri"
If you run bundle package under C Ruby, bundler will retrieve the version of nokogiri for the "ruby" platform. If you deploy to JRuby and
run bundle install, bundler is forced to check to see whether a "java" platformed nokogiri exists.
Even though the nokogiri gem for the Ruby platform is technically acceptable on JRuby, it actually has a C extension that does not run on
JRuby. As a result, bundler will, by default, still connect to rubygems.org to check whether it has a version of one of your gems more spe-
cific to your platform.
This problem is also not just limited to the "java" platform. A similar (common) problem can happen when developing on Windows and deploy-
ing to Linux, or even when developing on OSX and deploying to Linux.
If you know for sure that the gems packaged in vendor/cache are appropriate for the platform you are on, you can run bundle install --local
to skip checking for more appropriate gems, and just use the ones in vendor/cache.
One way to be sure that you have the right platformed versions of all your gems is to run bundle package on an identical machine and check
in the gems. For instance, you can run bundle package on an identical staging box during your staging process, and check in the ven-
dor/cache before deploying to production.
March 2013 BUNDLE-PACKAGE(1)