Red Hat NETSCAPE MANAGEMENT SYSTEM 6.0 - CUSTOMIZATION User Manual download pdf (Page 272)

260 Managing Files and Directories

So add the .daily to the command (or simply type the .d and press Ta b again). Press Tab again,

and the result will be:

logrotate tetex.cron tmpwatch updatedb.cron

And there’sourupdatedb.cron command. We can simply add it to the end of the path we’ve got

so far (or just type u and press

Tab yet again) and press Enter to run updatedb.cron.

17.4 Identifying and Working with File Types

If you’re new to Linux, it won’t take long before you begin seeing ﬁles with extensions that may seem

foreign. A ﬁle’s extension is the last part of a ﬁle’s name, after the ﬁnal dot (in the ﬁle sneakers.txt,

“txt” was that ﬁle’sextension).

Here’s a brief listing of extensions and their meanings:

17.4.1 Compressed/Archived Files

.Z – a compressed ﬁle

.tar – an archive ﬁle (short for tape archive)

.gz – a compressed ﬁle (gzipped)

.tgz – a tarred and gzipped ﬁle

17.4.2 File Formats

.txt – a plain ASCII text ﬁle

.html/.htm – an HTML ﬁle

.ps – aPostScriptﬁle; formatted for printing

.au – an audio ﬁle

.wav – an audio ﬁle

.xpm – an image ﬁle

.jpg – a graphical or image ﬁle, such as a photo or artwork

.gif – a graphical or image ﬁle

.png – a graphical or image ﬁle

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Red Hat NETSCAPE MANAGEMENT SYSTEM 6.0 - CUSTOMIZATION User Manual Page 272