Commandline 101: cat, Not Just for Purring
May 11th, 2009 by Shawn Powers in
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Shawn Powers is an Associate Editor for Linux Journal. You might find him chatting on the IRC channel, or Twitter
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If last month's Infrastrucuture issue was too "big" for you then try on this month's Embedded issue. Find out how to use Player for programming mobile robots, build a humidity controller for your root cellar, find out how to reduce the boot time of your embedded system, and if you're new to embedded systems find out the basics that go into one. You can also read about the Beagle Board, the Mesh Potato and a spate of other interestingly named items. And along with our regular columns don't miss our new monthly column: Economy Size Geek.
its an oldie but a goodie
On May 23rd, 2009 David Murch (not verified) says:
cat is so versatile I use it many times a day. You can even do things like this =)
> cat /dev/urandom > /dev/audio
Been done.
On May 12th, 2009 Amcguinn (not verified) says:
For a more in-depth look, get the O'Reilly book "Mastering Cat", by Schlomi Fish. (I can't post a link through the filter, but Google it
Don't forget notation
On May 23rd, 2009 Anonymous (not verified) says:
Don't forget notation like:
$ cat > file << EOF
> Line 1
> Line 2
> EOF
$ cat file
Line 1
Line 2
That will cause cat to exit when the line 'EOF' is entered
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