Software Package List installed in Linux

Question

I have RedHat Linux on which there are some softwares installed like:

• Standard C++ Library 33-3.2.3-47.3
• WebSphere MQ Client 6.0.2.6
• IBM Global Security Kit 7.0.4.11
• IBM Key Management Tool 6.0 or above
• Tivoli Data Exchange 4.4.0.0

I want to know if there is a way to get this list by executing some command from the Command line, such that when I execute the command, it prompts me with whatever is there and if anything is missing then it can be installed

Answer 1

If you know the RPM names for all of those packages, you can use the verify (-V) option to the rpm command to identify missing files or what has been modified since it was installed.

For example:

rpm -V compat-libstdc++-33
rpm -V gsk7bas

If nothing has changed, the command will produce no output. However, if a change is detected, you'll receive a report like this:

# rpm -V openssh-server
S.5....T.  c /etc/ssh/sshd_config

From the rpm man page: "Verifying a package compares information about the installed files in the package with information about the files taken from the package metadata stored in the rpm database. Among other things, verifying compares the size, MD5 sum, permissions, type, owner and group of each file."

If you don't know the RPM names, try this:

rpm -qa --queryformat="%{NAME}\t%{VENDOR}\n" | egrep -v "Red Hat"

Answer 2

Try rpm -qa to get a list of installed packages