Use Tape Record Scan to find
specific data on a tape.
When you select Tape Record Scan, the
Tape Record Scan panel shown in Figure 1
is displayed.
Figure 1. Tape Record Scan panel
Process Options Help
────────────────────────────────────────────────────────────────────────────────
File Manager Tape Record Scan
Tapes: No tapes allocated
Input:
DDNAME to use . ________ enter new name, or select one from above
Record format . U__ F,FB, V,VB,VS,VBS, D,DB,DS,DBS, or U
Record length . _______ if deblocking desired, fixed format only
Scan Options:
Pattern scan . NO_ YES or NO
Scan position . 1____ byte position within record to start at
Scan argument . _________________________________________________
Number of hits 1_______ or ALL to list all scan hits in the file
Records . . . . ALL_____ limit number of records to be scanned
Command ===> _________________________________________________________________
F1=Help F2=Split F3=Exit F4=CRetriev F7=Backward F8=Forward
F9=Swap F10=Actions F12=Cancel
When using Tape Record Scan:
You identify the tape device (DDNAME to use)
You
can specify a record format (Record format)
and, if the records are fixed-length, the record length
(Record length), to deblock the tape records while searching.
You can specify where in each record you want to search
(Scan position).
The default is to search for strings that start in column 1.
To search for strings that start in column n,
enter NO in the Pattern scan entry field
and enter n in the Scan position entry
field.
To search for strings anywhere in the record,
enter YES in the Pattern scan entry field.
To search for strings anywhere from column n
to the end of the record,
enter YES in the Pattern scan entry field
and enter n in the Scan position entry
field.
The string to search for has the
same format as used by the
FIND command in all functions, as well as for Disk Record Scan.
A character string not starting or ending with
a
quotation mark and not containing any embedded blanks or commas.
The case of the string is ignored. Uppercase and lowercase
representations of the same character match. For example,
'Mixed' matches 'MIXED'.
A
character string enclosed in quotation marks. The
string can contain blanks and commas. The case of the string
is ignored. For example, 'Exact string' matches
'exact string'
C followed
by a character string enclosed in
quotation marks (C'Frog'),
or a character string enclosed in quotation marks followed by
C ('Frog'C).
The string can contain blanks and commas.
The string must match exactly (including case). For example,
'Exact string' does not match 'exact string'
X followed by a hexadecimal string enclosed in
quotation marks. For example, X'C1C2'.
You can specify the number of occurrences
of the string that should be found before
the search stops. The default is to stop after the first occurrence.
You can specify the number of records to search through. The default
is to scan to the
end of the file.
Tape Record Scan stops after finding
the specified number
of occurrences of the string. The tape is positioned immediately
after the record containing the last occurrence.
If the string is not found, the tape stops after the next tape mark.