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awk input command??
- Thread starter lambros
- Start date
what's "input record"?
The paradigm is that you process a file one record at the time. The records are separated by by the value of RS variable [NewLine by default].
The "current" record is accessed by by either $0 in its entirety.
There's no "explicit" operator to go back to the FIRST record read - once the record has been processed it's gone.
You can "save" a particular record [FIRST for example] explicitely in your code and make your processing decissions based on the content of the "saved" record.
Is that something that you're after?
vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+
The paradigm is that you process a file one record at the time. The records are separated by by the value of RS variable [NewLine by default].
The "current" record is accessed by by either $0 in its entirety.
There's no "explicit" operator to go back to the FIRST record read - once the record has been processed it's gone.
You can "save" a particular record [FIRST for example] explicitely in your code and make your processing decissions based on the content of the "saved" record.
Is that something that you're after?
vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+
- Thread starter
- #3
Sort of I think Vlad,
You see the problem with my assignment, is that once my script uses processes the record, I need to assign a variable to the relevant record, then go back and test this variable against the entire input record again. Is this possible?
You see the problem with my assignment, is that once my script uses processes the record, I need to assign a variable to the relevant record, then go back and test this variable against the entire input record again. Is this possible?
sure. Something like that [mnemonic code]
{
assignedVariable=yourProcessingGoesHere
if ( assignedVariable != processSameRecordAgain)
next;
}
{
# here comes your logic to REprocess the same record
} vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+
{
assignedVariable=yourProcessingGoesHere
if ( assignedVariable != processSameRecordAgain)
next;
}
{
# here comes your logic to REprocess the same record
} vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+
- Thread starter
- #5
The 'assignedVariable" variable will contain the 'result' of your processing in step ONE.
The 'processSameRecordAgain' will contain some kind of the 'indicator' to determine if your processing of the same record the SECOND time.
Remember, this is all mnemonic. vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+
The 'processSameRecordAgain' will contain some kind of the 'indicator' to determine if your processing of the same record the SECOND time.
Remember, this is all mnemonic. vlad
+---------------------------+
|#include<disclaimer.h> |
+---------------------------+
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