Rdb: Ruby-Nachbau der MWC /rdb-Werkzeuge

man/dbase.man

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+.TH "dBASE crossreference" "" "" "Technical Information"
+.PC
+.PP
+.II dBASE
+.II Ashton-Tate
+.II "Borland International"
+dBASE was developed and marketed by Ashton-Tate;
+this company was purchased recently by Borland International.
+.PP
+The following table gives the
+.B /rdb
+and \*(UX equivalents for most common dBASE commands.
+The slug in \fBbold\fR characters gives the dBASE command; the following
+description gives the
+equivalent in
+.B /rdb
+and \*(UX
+commands:
+.II "command^dBASE to /rdb"
+.nf
+.sp \n(pDu
+\fBACCEPT Comment TO Variable\fR
+.II echo
+.II read
+	echo Comment ; read Variable
+.sp \n(pDu
+\fBAPPEND BLANK\fR
+	echo >> Fileout
+.sp \n(pDu
+\fBAPPEND FROM Filename FOR Condition\fR
+.II row
+	row 'Condition' < Filename >> Fileout
+.sp \n(pDu
+\fBBROWSE\fR
+.II more
+.II scat
+.II update
+	more, scat, update, or any text editor
+.sp \n(pDu
+\fBCANCEL\fR
+.II stty
+	DEL (any character set with \fBstty\fR)
+.sp \n(pDu
+\fBCHANGE Range FIELD Fieldname FOR Condition\fR
+.II compute
+	compute 'Range && Condition {Fieldname = Value}' < Filein
+.sp \n(pDu
+\fBCLEAR\fR
+\fBCLEAR GETS\fR
+.II clear
+	clear
+.sp \n(pDu
+\fBCONTINUE\fR
+.II continue
+	continue [shell statement]
+.sp \n(pDu
+\fBCOPY TO Filename FIELD Fieldnames FOR Condition\fR
+.II row
+.II column
+	row 'Condition' < Filein | column Fieldnames > Filename
+.sp \n(pDu
+\fBCOUNT FOR Condition TO Variable FOR Condition\fR
+	row 'Condition' < Filein | tail +3 | wc -l
+.sp \n(pDu
+\fBCREATE Filename\fR
+.II vi
+.II ve
+	> Filename ; vi Filename ; ve Filename ; cmd > Filename
+.sp \n(pDu
+\fBDELETE RECORD Number\fR
+.II sed
+.II tail
+	(sed $NUM+1}q Filename ; tail +$NUM+3}) > tmp; mv tmp Fieldname
+.sp \n(pDu
+\fBDELETE NEXT Number\fR
+\fBDELETE ALL\fR
+.II mv
+	sed 2q Filename > tmp ; mv tmp Filename
+.sp \n(pDu
+\fBDELETE NEXT Number FOR Condition\fR
+\fBDELETE FILE Fieldname\fR
+	> Filename
+.sp \n(pDu
+\fBDISPLAY Range FOR Bedingung Field OFF\fR
+	row 'Range && Dedingung' < Filename | column Fieldnames
+.sp \n(pDu
+\fBDISPLAY STRUCTURE\fR
+.II for
+	for I in * do sed 2q; done
+.sp \n(pDu
+\fBDISPLAY MEMORY\fR
+.II df
+.II du
+	df ; du
+.sp \n(pDu
+\fBDISPLAY FILES ON Disk LIKE Datatype\fR
+.II ls
+	ls *Datatype ; ls Disk/*Datatype
+.sp \n(pDu
+\fB) Program\fR
+	Program
+.sp \n(pDu
+\fBCASE Condition\fR
+.II case
+	Condition) [shell case statement]
+.sp \n(pDu
+\fBOTHERWISE\fR
+	*) [shell case statement]
+.sp \n(pDu
+\fBDO WHILE Condition CR ENDDO\fR
+.II while
+	while Condition CR do done
+.sp \n(pDu
+\fBEDIT\fR
+	vi, ve, update, ex, ed, me, other editors and commands
+.sp \n(pDu
+\fBECT\fR
+\fBENDDO\fR
+	do [in shell while, until, for statements]
+.sp \n(pDu
+\fBERASE\fR
+	clear
+.sp \n(pDu
+\fBFIND Text\fR
+	/Text (in vi, ve, update)
+.sp \n(pDu
+\fBINDEX ON Fieldname TO Filename\fR
+.II index
+	index Filename Fieldname ...
+.sp \n(pDu
+\fBUSE Filename INDEX Keyfield\fR
+.II search
+	search Filename Keyfield
+.sp \n(pDu
+\fBINPUT Text To Variable\fR
+	Variable=Text
+.sp \n(pDu
+\fBINSERT\fR
+	sed ${NUM}q Filename; echo $RECORD; tail +$NUM Filename
+.sp \n(pDu
+\fBJOIN TO Filename FOR Condition FIELDS Fieldnames\fR
+.II jointable
+	jointable Filename1 Filename2
+	row 'Condition' < Filename2 | jointable Filename1 -
+	column Fieldnames < Filename2 | jointable Filename1 -
+.sp \n(pDu
+\fBColumn,Row SAY Comment GET Variable PICTURE\fR
+.II tput
+	tput Column ; tput Row ; echo Comment ; READ Variable
+.sp \n(pDu
+\fBGO\fR
+\fBGOTO\fR
+\fBGO RECORD n\fR
+	ve nG
+.sp \n(pDu
+\fBGO Fieldname\fR
+	ve /
+.sp \n(pDu
+\fBGO TOP\fR
+	ve H
+.sp \n(pDu
+\fBGO BOTTOM\fR
+	ve L
+.sp \n(pDu
+\fBIF Condition Statement2 ELSE Statement2 ENDIF\fR
+	if Condition then Statement1 else Statement2 fi
+.sp \n(pDu
+\fBLOCATE FOR Condition\fR
+	row 'Condition' < Filename
+.sp \n(pDu
+\fBLOOP\fR
+	while, until, for [shell statements]
+.sp \n(pDu
+\fBMODIFY STRUCTURE\fR
+	column New Fieldnames < Filename
+.sp \n(pDu
+\fBNOTE\fR
+\fBREMARK\fR
+	: Old Comment
+	# New Comment
+.sp \n(pDu
+\fBMOVE Old-Filename TO New-Filename\fR
+	mv Old-Filename New-Filename
+.sp \n(pDu
+\fBREPLACE Range Fieldname WITH Expression FOR Condition\fR
+.II compute
+	compute 'Fieldname = Expression' < Filename
+	compute 'Range && Condition {Fieldname = Expression}' < Filename
+.sp \n(pDu
+\fBREPORT Form FOR Condition TO PRINT\fR
+.II report
+	report Form < Filename
+	row 'Condition' < Filename | report Form | print
+.sp \n(pDu
+\fBPACK\fR
+.II pack
+	compress, uncompress [\*(UX]
+.sp \n(pDu
+\fBQUIT\fR
+	\fB<ctrl-D>\fR
+.sp \n(pDu
+\fBREAD\fR
+.II read
+	read Variable
+.sp \n(pDu
+\fBRECALL Condition\fR
+	row 'Condition' < Filename
+.sp \n(pDu
+\fBRELEASE Variable\fR
+	Variable=
+.sp \n(pDu
+\fBRESET\fR
+\fBRESTORE FROM Filename\fR
+\fBRETURN\fR
+.II return
+	return [shell]
+.sp \n(pDu
+\fBSAVE TO Filename\fR
+\fBSELECT\fR
+	row, column, etc.
+.sp \n(pDu
+\fBSET\fR
+.II set
+	set [shell]
+.sp \n(pDu
+\fBSKIP\fR
+\fBSORT ON Fieldname TO Filename\fR
+	sorttable Fieldname > Filename
+.sp \n(pDu
+\fBSTORE Expression TO Variable\fR
+	Variable=`Expression`
+.sp \n(pDu
+\fBSUM Fieldname TO Variable FOR Condition\fR
+	Variable=`row 'Condition' < Filename | column Fieldname`
+.sp \n(pDu
+\fBTOTAL ON Keyfield TO Filename FIELDS Fieldnames FOR Condition\fR
+.II subtotal
+	row 'Condition' | subtotal Keyfield Fieldnames > Filename
+.sp \n(pDu
+\fBUPDATE FROM Filename ON Keyfield\fR
+	update, vi, ve, replace, append, delete, etc.
+.sp \n(pDu
+\fBUSE Filename\fR
+	cmd < Filename
+.sp \n(pDu
+\fBWAIT\fR
+	wait [shell]
+.sp \n(pDu
+\fB@ Row,Column SAY expression\fR
+	cursor Row Column; echo EXPRESSION
+	ve screen and validation file
+.fi
+.PP
+All data-base systems have some method for
+importing text files.
+Sometimes you'll be able to
+use the header information that comes with
+.B /rdb
+tables,
+and sometimes you'll have to specify this information
+to the target system anyway.