Rdb: Ruby-Nachbau der MWC /rdb-Werkzeuge

2026-10-11 20:33:17 +02:00
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+.TH paste.rdb "" "" "/rdb Command"
+.PC "Paste together two or more tables"
+\fBpaste.rdb \fItable1 table2 ...\fR
+.PP
+.II "table^paste"
+.II "paste tables"
+The command
+.B paste.rdb
+displays
+.IR table1 ,
+.IR table2 ,
+and so on, side by side.
+This is almost identical to the COHERENT command
+.BR paste .
+.PP
+The
+.B /rdb
+version of
+.B paste.rdb
+uses the COHERENT
+command
+.B pr
+to list the tables side by side:
+.DM
+	pr -m -t -s table1 table2 [...]
+.DE
+.PP
+.B paste.rdb
+differs from the command
+.B jointable
+in that
+.B jointable
+looks for matching values in key columns and writes only the
+rows in which it finds a match.
+.BR paste.rdb
+does not care what it is pasting together.
+You can get some interesting garbage with
+.BR paste.rdb .
+.PP
+You can also do a kind of visual
+.B diff
+in which you can see an old and new file lined up side by side.
+You could do this with two list files, but be careful, because
+the output will generally not be acceptable by other
+.B /rdb
+programs.
+.SH Example
+The following commands break the table
+.BR inventory :
+.DM
+	column Item Value < inventory > tmp1
+	column Cost Amount Description < inventory > tmp2
+.DE
+.PP
+This yields table
+.BR tmp1
+.DM
+Item    Value
+-----   -----
+    1     150
+    2     500
+    3     400
+    4     437
+    5    2376
+    6   13083
+    7     875
+.DE
+.PP
+.BR tmp2 :
+.DM
+Cost    Amount  Description   
+----    ------  --------------
+  50         3  rubber gloves
+   5       100  test tubes
+  80         5  clamps
+  19        23  plates
+  24        99  cleaning cloth
+ 147        89  bunsen burners
+ 175         5  scales
+.DE
+.PP
+Now, you can use
+.B paste.rdb
+to put them back together:
+.DM
+	paste.rdb tmp1 tmp2
+.DE
+.PP
+This writes the following onto the standard output:
+.DM
+Item    Value   Cost    Amount  Description   
+-----   -----   ----    ------  --------------
+1       150     50      3       rubber gloves
+2       500     5       100     test tubes
+3       400     80      5       clamps
+4       437     19      23      plates
+5       2376    24      99      cleaning cloth
+6       13083   147     89      bunsen burners
+7       875     175     5       scales
+.DE
+.PP
+This is not an efficient way use
+.BR column ;
+one command could do the job, instead of two.
+.BR paste.rdb ,
+however, it is a good way to put tables together if
+.B jointable
+is inappropriate.
+If you had wanted to use
+.B jointable
+here, you should
+.B project
+column
+.B Item
+into both tables.
+.SH "See Also"
+.B
+column,
+jointable
+.R
+.br
+COHERENT Lexicon:
+.B
+diff,
+paste,
+pr
+.R
+.SH Notes
+This command is named
+.B paste.rdb
+rather than
+.BR paste ,
+as in other implementations of
+.BR /rdb ,
+to avoid clashing with the COHERENT command
+.BR paste .
+.SO paste