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Operating Systems Linux Red Hat Finding version of firefox in directory Post 302991440 by drysdalk on Friday 10th of February 2017 03:02:25 PM
Old 02-10-2017
Hi,

This is a bit of an oddball suggestion to say the least, but if you have a full proper install of Firefox that came from a package or repo somewhere, you might well have the changelog to look at. For example, on my own system (which is admittedly Ubuntu rather than RHEL/CentOS, but it's the only box I have Firefox installed on) I could do something like this:

Code:
zcat /usr/share/doc/firefox/changelog.Debian.gz | head -1 | awk '{print $2}' | sed s/[\(\)]//g

which returns:

Code:
51.0.1+build2-0ubuntu0.16.04.2

So if you have the changelog, you can look at the first line and strip out the version number, basically.

Other than that, if it was installed from a package you could query the rpm database directly, but since it seems you only have access to the files and not a running copy of the other OS build that might not be feasible. If it was installed properly via yum/rpm in the other OS though you could look at the yum.log or something similar, and strip out the version number that way maybe.
 

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yum-utils(1)															      yum-utils(1)

NAME
yum-utils - tools for manipulating repositories and extended package management SYNOPSIS
debuginfo-install - install debuginfo packages and their dependencies find-repos-of-install - report which repository the package was installed from needs-restarting - report process ids that started running before they or some component they use were updated package-cleanup - manage package cleanup, duplicates, orphaned packages and outstanding dependency problems repo-graph - outputs a full package dependency list in dot format repo-rss - generates an RSS feed from one or more repositories repoclosure - reads metadata of repositories, checks dependencies and displays list of unresolved dependencies repodiff - takes two or more repositories, returns a list of added, removed or changed packages repomanage - manages a directory of rpm packages, returns a list of newest or oldest packages in a directory repoquery - query yum repositories and get additional information on the them reposync - synchronize a remote yum repository to a local directory using yum to retrieve packages repotrack - track packages and its dependencies and downloads them show-changed-rco - list of changes to a package Requires, Conflicts and Obsoletes data from installed to a specified rpm file show-installed - gives a compact description of packages installed and makes use of comps groups in repositories verifytree - verify that a local yum repository is consistent yum-builddep - installs missing dependencies to build a specified package yum-complete-transaction - finds incomplete or aborted yum transactions and attempts to complete them yum-config-manager - toggle yum repositories, add new repositories and set main yum configuration options yum-debug-dump - creates gzipped file containing information for debugging problems yum-debug-restore - replays any transactions captured in gzipped file in yum shell yum-groups-manager - create and edit yum's group metadata yum-installed - print a compact package list making use of comps groups yumdb - query or alter the yum database yumdownloader - downloads packages from yum repositories including source RPMs DESCRIPTION
yum-utils is a collection of tools and programs for managing yum repositories, installing debug packages, source packages, extended infor- mation from repositories and administration. NOTES
See respective tools for additional help for commands without a manual page SEE ALSO
debuginfo-install(1), package-cleanup(1), repodiff(1), repoquery(1), reposync(1), repo-rss(1), show-changed-rco(1), show-installed(1), yum- downloader(1), yum-builddep(1), yum-debug-dump(1), yum-groups-manager(1), yumdb(8), yum-complete-transaction(8) AUTHOR
Shawn Starr <shawn.starr@rogers.com> yum-utils August 2011 yum-utils(1)
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