UNIX system call in COBOL

Hi,

The UNIX system call inside the COBOL program is doing
the specified command correctly.

MOVE W080-UNZIP-FILE-COMMAND TO W080-OUTPUT-COMMAND
CALL "SYSTEM" USING W080-OUTPUT-COMMAND
RETURNING W080-SYS-CALL-STATUS

BUT The problem is, the following keeps on showing on the log file
just after running the line CALL "SYSTEM".....
Although the status is = 256 which is an ACCEPTABLE-ERROR

gunzip: gunzip.gz: No such file or directory
gunzip: sleep.gz: No such file or directory
gunzip: 2.gz: No such file or directory
gunzip: FILEHDR.gz: No such file or directory
gunzip: A000000001000000001CHEQUE.gz: No such file or directory
gunzip: ADVICES.gz: No such file or directory
gunzip: compressed data not read from a terminal. Use -f to force decompression.

Could please someone advise, why those messages are showing on the logfile?

Thank you.

please post the logic for W080-UNZIP-FILE-COMMAND

Hi Frank

The W080-UNZIP-FILE-COMMAND is defined as

01 W080-UNZIP-FILE-COMMAND.
03 W080-UNZIP PIC X(07)
VALUE "gunzip ".
03 W080-FILE-NAME PIC X(100).

Following is the complete logic for W080-UNZIP-FILE-COMMAND

SET W080-SYS-SUCCESS TO TRUE
MOVE SPACES TO W080-OUTPUT-COMMAND
MOVE "CHECK_FILE.DAT" TO W080-FILE-NAME
MOVE W080-UNZIP-FILE-COMMAND TO W080-OUTPUT-COMMAND
CALL "SYSTEM" USING W080-OUTPUT-COMMAND
RETURNING W080-SYS-CALL-STATUS

Thanks.