Deleting work files, lines, texts and record marks

The following statements provide various ways of deleting records, parts of records or entire work files.

@DELETE (Format 1)	Fully or partially deletes lines and string variables.	F mode L mode
@DELETE (Format 2)	Completely deletes work files.	F mode L mode
@DELETE (Format 4)	Deletes record marks.	F mode L mode
@DROP	Completely deletes the specified work files.	L mode
@ON (Format 8)	Deletes the hit string in the searched range.	F mode L mode
@ON (Format 9)	Searches for a string and deletes the content of a work file line or string variable before or after the hit string.	F mode L mode
@ON (Format 10)	Searches for a string and deletes the work file lines or the content of string variables which contain the search term.	F mode L mode