Red Hat NETSCAPE MANAGEMENT SYSTEM 6.0 - CUSTOMIZATION User Manual download pdf (Page 252)

240 You Are Here

[billy@localhost billy]$ cat saturday

and you should see something like this:

[billy @localhost billy]$ cat saturday

buy some sneakers

then go to the coffee shop

then buy some coffee

bring the coffee home

take off shoes

put on sneakers

make some coffee

relax!

[billy @localhost billy]$

You can see that cat has added home.txt where sneakers.txt left off.

Tip: Creating and combining short ﬁles with cat can be a convenient alternative to

using a text editor like pico.

Summary: By using the output redirection symbol (>) you can send the output to a ﬁle

instead of the terminal. The cat utility can be used along with output redirection to join

ﬁles together into a single, uniﬁed ﬁle with one ﬁlename.

16.8 Appending Standard Output

There’s a neat twist to output redirection which allows you to add new information to the end of

an existing ﬁle. Similar to when you used the > symbol, you tell your shell to send the information

somewhere other than standard output.

However, when you use >>,you’re adding information, rather than replacing it.

The best explanation is a demonstration, so let’s take two ﬁles which have already already been

created – sneakers.txt and home.txt – and join them by using the append output symbol. We

want to add the information in home.txt to the information already in sneakers.txt,sowetype:

cat home.txt >> sneakers.txt

1 2 ... 247 248 249 250 251 252 253 254 255 256 257 ... 299 300

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Red Hat NETSCAPE MANAGEMENT SYSTEM 6.0 - CUSTOMIZATION User Manual Page 252