10-16-2012
Quote:
Originally Posted by
Don Cragun
Since the f1, f2, and f3 shown in your example are all identical; and since the string ("times gaped in last 1 hr.") that you say should appear in f3 does not appear in f3 in your example, I don't understand what you're trying to do. Subtracting 0 from 0 yielding 0 doesn't provide a good example of what you want to have happen.
I'm also not at all sure what you expect to get when you subtract text fields from each other (e.g., "NORD_BALT_02" - "NORD_BALT_02") which is $4 in the 1st record in f1 and $4 in the 1st record in f2. (You talk about column 6 in the text of your message, but you subtract values of $4 in your awk script???)
It is not always "0". we get non-zero values too. $4 was the previous awwk, that contained 6th col value. now more columns are added so that became the 6th col in f1 and f2
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LEARN ABOUT OPENSOLARIS
script
script(1) User Commands script(1)
NAME
script - make record of a terminal session
SYNOPSIS
script [-a] [filename]
DESCRIPTION
The script utility makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
record is saved in the file typescript. See WARNINGS.
The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
when the forked shell exits or when Control-d is typed.
OPTIONS
The following option is supported:
-a Appends the session record to filename, rather than overwriting it.
NOTES
script places everything that appears on the screen in filename, including prompts.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|CSI |Enabled |
+-----------------------------+-----------------------------+
SEE ALSO
attributes(5)
WARNINGS
script can pose a security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
privileged user, that is, root. Be sure that typescript is not a link before running script.
SunOS 5.11 30 Jan 2004 script(1)