Rdb: Ruby-Nachbau der MWC /rdb-Werkzeuge

man/fixtotable.man

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+.TH fixtotable "" "" "/rdb Command"
+.PC "Converts fixed length format to /rdb table format"
+\fBfixtotable \fIcolumn\fB\|[=\|\fIn1\fB,\fIn2\fB] ... < \fIfixtdb\fR
+.PP
+.II "table^convert format"
+.II "table^fixed length"
+.II "convert table format"
+The command
+.B fixtotable
+converts a data base from fixed-length format to
+variable length \fB/rdb\fR format.
+It does so
+by selecting \fIn2\fR bytes of data from table \fIfixtdb\fR,
+beginning at the \fIn1\fR position for each \fIcolumn\fR specified.
+It inserts tabs between columns and calls the
+.B /rdb
+command
+.B compress
+to remove leading and trailing blanks.
+It generates
+header records from the column names.
+Column names that do not specify start position (\fIn1\fR) and
+field width (\fIn2\fR) are considered empty columns, and appear
+as such in the output.
+Blank records are removed.
+.SH Example
+For example, let's look at a file named \fBjournal\fR:
+.DM
+1       10        20        30
+----+----|----+----|----+----|
+820102101     25000       
+820102211.1          25000
+820103150.1   10000       
+820103101             5000
+820103211.2           5000
+820104130     30000       
+.DE
+.PP
+The first six bytes are the date field;
+the next six bytes, starting at position 7 are the account number field;
+the next seven bytes, starting at position 13 are the credit field;
+and the last seven bytes, starting at position 20 are the debit field.
+.PP
+The following command yanks
+the account number and the credit and debit fields from
+.BR journal ,
+makes a new table with a new field for the description:
+.DM
+fixtotable Account=7,6 Debit=13,7 Credit=20,7 Description < journal
+.DE
+.PP
+This produces the following table:
+.DM
+Account Debit   Credit  Description
+------- -----   ------  -----------
+101     25000           
+211.1           25000   
+150.1   10000           
+101     5000            
+211.2           5000    
+130     30000           
+.DE
+.SH "See Also"
+.B
+compress,
+tabletofix
+.R
+.SO fixtotable