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The -R flag prevents you from making changes to a file, useful when you only want to view the file. This command is nicer than the 'more' or 'less' commands because for source codes, vi shows syntax highlight.
There are 3 alternatives - vote for the best!
If you can do better, submit your command here.
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There is also ccze that does coloring, very nice for logs or such.
"view filename" should work fine too.
OJM: I know about the view command, but for the Linux system at work, view does not do syntax coloring.
unixmonkey, in view, try :syntax on
maybe there's a config file for this
jcgam69: Yes, I know about syntax on and it did not work, at least with the my Linux distro, which is derived from Red Hat's