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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-CHANGELOG(1)						   User Manuals 						  YUM-CHANGELOG(1)

NAME
yum-changelog SYNOPSIS
The yum-changelog package DESCRIPTION
yum-changelog(1) is a Yum plugin for viewing package changelogs before/after updating. yum will invoke yum-changelog(1) plugin if the --changelog option or the changelog command is used with yum. OPTIONS
--changelog Show changelog delta of updated packages COMMANDS
changelog Show changelog data of packages listed (same format as the list command). The first argument is required and is either "all" for all the changelog entries, a date for the changelog entries since a specified point in time or a number for a given number of changelog entries. FILES
/etc/yum/pluginconf.d/changelog.conf The system wide configuration file. See yum-changelog.conf(5) for more information. EXAMPLES
# yum changelog 2008-Jan yum* Listing changelogs since: 2008-01-18 yum-versionlock-1.1.11-1.fc8.noarch installed * Wed Jan 30 17:00:00 2008 Tim Lauridsen <timlau@fedoraproject.org> - mark as 1.1.11 changelog stats. 33 pkgs, 12 source pkgs, 1 changelog # yum update ktechlab --changelog Loading "changelog" plugin Setting up Update Process Setting up repositories [..] Resolving Dependencies --> Populating transaction set with selected packages. Please wait. ---> Package ktechlab.i386 0:0.3-6 set to be updated --> Running transaction check Changes in packages about to be updated: ktechlab - 0.3-6.i386 * Wed Nov 22 23:00:00 2006 Chitlesh Goorah - 0.3-6 - Rebuilt due to new gpsim-devel release BUGS
There are of course no bugs, but should you find any, you should first consult the FAQ section on http://yum.baseurl.org/wiki/Faq and if unsuccessful in finding a resolution contact the mailing list: yum-devel@lists.baseurl.org. To file a bug use http://bugzilla.redhat.com for Fedora/RHEL/Centos related bugs and http://yum.baseurl.org/report for all other bugs. AVAILABILITY
yum-changelog is available via: # yum install yum-changelog AUTHORS
Chitlesh Goorah <chitlesh@fedoraproject.org> Panu Matilainen <pmatilai@laiskiainen.org> James Antill <james@and.org> SEE ALSO
yum(1) 08 February 2007 YUM-CHANGELOG(1)
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