Hi All,

How can I check that how many applications are installed on RHEL5. Like in windows, we have add/Remove programs, do we have something like that in Linux as well ?

And how can I uninstall unwanted applications after searching them?

Thank You all in advance...

Kapil Bajpai

It should be as rpms most of the time since you are talking about RHEL5.
Do an rpm -qa to see all the packages that are installed
And rpm -e <packacgename> to delete

--Ukesh Upendran

Hi UKS,

Thanks for the help..I tried that and it gave a very long list of packages. But I can't see few softwares those I have installed through the installers few days back.
Is there any way that I can customise this listing of applications, say with recently installed applications, or say with 3rd party softwares...etc ...

Thank You again,
Kapil.

Making a list with install date, the newest at line 1 :
( rpm packages only )

'rpm -qa -last > last-packages.txt'

Alfabetic 'rpm -qa -last | sort > last-packages-sort.txt'
....

Hi there,

Thank you for the reply...I tried and I think now it is manageable.

thank you again.

A suggestion since you said its a few specific software you are searching for:

club grep along with the earlier command if you know the software you are searchin for:

rpm -qa | grep perl

Hi uks,

Thanks for that extra effort for me...
I tried to get one such installed application, but unable to get that. this is what I tried :
[saji@anthurium ~]$ rpm -qa | grep GeneSpringGX10
[saji@anthurium ~]$

Then I tried the same as root as well :
[saji@anthurium /]$ rpm -qa | grep GeneSpringGX10
[saji@anthurium /]$

Could you please suggest something, as I know that I am doing something wrong here....

thank You,
Kapil.

try this:
[saji@anthurium ~]$ rpm -qa | grep pring

If there are a lot of files that fly by your eyes, pipe it to less and press the spacebar to scroll through it:
[saji@anthurium ~]$ rpm -qa | grep pring | less

(I removed the capital letters and chose the most unique string of letters. Sometimes things will install in lowercase letters.)

rpm will only list the items installed as .rpm packages. If you compiled the program from source, you'll have to find where it is installed. try this:

1.) login as root ([saji@anthurium ~]$ su - )
2.) update the location database ([saji@anthurium ~]$ updatedb)
3.) locate the file ([saji@anthurium ~]$ locate pring | less)


here is another way, if you installed it with yum:
[saji@anthurium ~]$yum list installed | less

if it's listed after the yum command, you'll have to remove it using "yum remove <package name>"

Hi David,

Thanks for the information..It is really a great help..

[saji@anthurium ~]$ rpm -qa | grep pring didn't worked for me..
I tried updating database and locating pring with less option and got hell lot of files..Now, I will try to gather the required information from this..it seems that is not installed through rpm or Yum..

Is there any way that we can check whether application is installed through rpm..or Yum..or from source installers ??

Thank you,
Kapil.

you can also use
system-config-packages

Hi Hasan,

system-config-packages gives "unknown eror" box in rhel5 environment.
Do you have any other option to check this?

Thank You

Yum is just a front end for rpm, it adds dependency resolution. Anything installed with yum will appear in the rpm database. If you compiled from source without building an rpm(and installing said rpm) it will not show up in the rpm database. This makes it very difficult to find and can make it very difficult to remove (cleanly). While it is a PITA I would suggest always building an rpm (and installing it) rather than installing straight from source, this of course assumes a pre-built rpm is not available.

by default in rhel5 its installed.
to verify go to applications and look for Add/Remove Software.