RosettaCodeData/Task/File-input-output/REXX/file-input-output-1.rexx
2023-07-01 13:44:08 -04:00

12 lines
1.1 KiB
Rexx

/*REXX program reads a file and copies the contents into an output file (on a line by line basis).*/
iFID = 'input.txt' /*the name of the input file. */
oFID = 'output.txt' /* " " " " output " */
call lineout iFID,,1 /*insure the input starts at line one.*/ /* ◄■■■■■■ optional.*/
call lineout oFID,,1 /* " " output " " " " */ /* ◄■■■■■■ optional.*/
do while lines(iFID)\==0; $=linein(iFID) /*read records from input 'til finished*/
call lineout oFID, $ /*write the record just read ──► output*/
end /*while*/ /*stick a fork in it, we're all done. */
call lineout iFID /*close input file, just to be safe.*/ /* ◄■■■■■■ best programming practice.*/
call lineout oFID /* " output " " " " " */ /* ◄■■■■■■ best programming practice.*/