Amanda Amanda@Work.Group/DOS, Руководство администратора

Страница: 217 / 264

Chapter 10: Using Utilities 207
Displaying Text Files (20 Lines at a Time)
The Less utility displays a text file on the screen, 20 lines at a time. This
utility is similar to the MORE command in DOS, but with many additional
features.
Syntax:
less filename
You can move around in the file:
• Use Page Up and Page Down to scroll through the file
• Use Up Arrow and Down Arrow to move from line to line
• To view an additional line, press Enter
• To view the next 20 lines, press the spacebar or Page Down
• To search forward for a string of characters , type
/string
• To search backward for a string of characters, type
?string
• For Help, press H
• To Quit, press Q
The Less utility is often used with the Grep utility. For instance, if you have
a very large TRACE.OUT file, and you are interested in only the activity on
Port 1, you could
filter the TRACE file with Grep and then page through the
results with Less.
At the C:\AMANDA> prompt, type:
grep "ichan_01" trace.out | less
To write the file to a dif-
ferent file name Ctrl+X Ctrl+W
To exit Ctrl+X Ctrl+C
JOVE Commands (Continued)
Action Command