09-18-2011
Well, for starters, redhat-release only exists on redhat. it's also only a file, so might lie or be missing.
More distributions have /etc/release but it's not impossible they won't, or be incorrect.
/proc/version is more general but only a Linux thing as far as I know.
uname exists almost everywhere.
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LEARN ABOUT CENTOS
system-config-kickstart
SYSTEM-CONFIG-KICKSTART(8) Kickstart Configurator SYSTEM-CONFIG-KICKSTART(8)
NAME
system-config-kickstart - graphical interface for creating kickstart files
SYNOPSIS
system-config-kickstart [KSFILE]
DESCRIPTION
system-config-kickstart provides a simple method of creating a kickstart file that can be used to automate the installation process on Red
Hat Enterprise Linux, Fedora, and derived distributions.
If given, the program will take its initial settings from the KSFILE provided on the command line. This allows editing of existing kick-
start files.
Currently, this program has some serious limitations. For example, it cannot work with LVM nor do advanced RAID and BTRFS configurations.
These are supported by kickstart, but the graphical program does not provide a way to set them up nor manipulate them in existing kickstart
files.
OPTIONS
--help Print out program usage.
--generate FILENAME
Examine the system and create a kickstart file that more or less matches, writing the output to FILENAME.
--display DISPLAY#
Specify the X display to use.
EXAMPLES
To run the program type:
system-config-kickstart
REPORTING BUGS
Report bugs to <http://bugzilla.redhat.com>.
AUTHORS
Chris Lumens <clumens@redhat.com>
Brent Fox <bfox@redhat.com>
Tammy Fox <tfox@redhat.com>
Linux Fri 26 June 2013 SYSTEM-CONFIG-KICKSTART(8)