09-17-2007
Hi drl,
Thanks for your reply - I'm certainly finding Perl more productive than using bash shell scripting but it's a little harder to learn - I'm sure I'll get there tho
The match I'm looking for is actually in the top line of the file and not the filename itself:
Quote:
$ grep Shared MemorySwapUtilisation.csv
"Date","Time","Free Memory KB","Used Memory KB","% Memory Used","Shared Memory KB","Kernel Buffers KB","Data Cache KB","Free Swap Space KB","Used Swap Space KB","% Swap Used"
There are two types of input files (output from sar) because the systems I'm extracting the data from are configured slightly differently. Hence the need to work out which type of file I'm looking at...
So when I've found out whether the work 'Shared' exists in the header line I want to perform one of two possible options on the rest of the file.
Hope this makes my question clearer?
Thanks, p.
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LEARN ABOUT OPENDARWIN
shift
shift(1) User Commands shift(1)
NAME
shift - shell built-in function to traverse either a shell's argument list or a list of field-separated words
SYNOPSIS
sh
shift [n]
csh
shift [variable]
ksh
* shift [n]
DESCRIPTION
sh
The positional parameters from $n+1 ... are renamed $1 ... . If n is not given, it is assumed to be 1.
csh
The components of argv, or variable, if supplied, are shifted to the left, discarding the first component. It is an error for the variable
not to be set or to have a null value.
ksh
The positional parameters from $n+1 $n+1 ... are renamed $1 ..., default n is 1. The parameter n can be any arithmetic expression that
evaluates to a non-negative number less than or equal to $#.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
csh(1), ksh(1), sh(1), attributes(5)
SunOS 5.10 15 Apr 1994 shift(1)