WRITE A PROGRAM TO DISPLAY FILE CONTENTS OR WRITE ON TO FILE OR EXECUTE BASED ON USER CHOICE

 1.

V1 SP25

ECHO ''ENTER A FILE NAME:\C''

READ FNAME

ECHO''MAIN MENU''

ECHO''R.READ MODE''

ECHO''W.WRITE MODE''

ECHO''X.EXECUTE MODE''

ECHO''ENTER MODE:\C''

READ MODE

CASE $MODE IN

R)

IF[-F$FNAME -A-R$FNAME]

THEN

CAT$FNAME

FI

..

,,

W)

IF[-F$FNAME-A-W$FNAME]

THEN

ECHO''ENTER DAT TO FILE AT END PRESS CTRL+D:''

CAT>$FNAME

FI

..

,,

X)

IF[-F$FNAME-A-X$FNAME]

THEN

CHMOD U+X $FNAME

$FNAME

FI

..

,,

*)ECHO''YOU ENTERED INVALID MODE....''

..

,,

ESAC

:WQ(SAVE AND QUIT)