Fortran Fortran Write Path - Change File Paths

[shade rahmawati]

Hello,

I have write a fortran code to write several file, like this

CHARACTER(len=12) :: FNAME
INTEGER::ST

DO 100 ST=1,12
DO KC=1,4 !number of layer
IF(ST.EQ.1) WRITE (FNAME,10)KC
IF(ST.EQ.2) WRITE (FNAME,11)KC
IF(ST.EQ.3) WRITE (FNAME,12)KC
IF(ST.EQ.4) WRITE (FNAME,13)KC
IF(ST.EQ.5) WRITE (FNAME,14)KC
IF(ST.EQ.6) WRITE (FNAME,15)KC
IF(ST.EQ.7) WRITE (FNAME,16)KC
IF(ST.EQ.8) WRITE (FNAME,17)KC
IF(ST.EQ.9) WRITE (FNAME,18)KC
IF(ST.EQ.10) WRITE (FNAME,19)KC
IF(ST.EQ.11) WRITE (FNAME,20)KC
IF(ST.EQ.12) WRITE (FNAME,21)KC
WRITE(6,*)FNAME
OPEN(1,FILE=FNAME)

CLOSE(1)
END DO
10 FORMAT('XY01UA',I2.2,'.DAT')
11 FORMAT('XY02UA',I2.2,'.DAT')
12 FORMAT('XY03UA',I2.2,'.DAT')
13 FORMAT('XY04UA',I2.2,'.DAT')
14 FORMAT('XY05UA',I2.2,'.DAT')
15 FORMAT('XY06UA',I2.2,'.DAT')
16 FORMAT('XY07UA',I2.2,'.DAT')
17 FORMAT('XY08UA',I2.2,'.DAT')
18 FORMAT('XY09UA',I2.2,'.DAT')
19 FORMAT('XY10UA',I2.2,'.DAT')
20 FORMAT('XY11UA',I2.2,'.DAT')
21 FORMAT('XY12UA',I2.2,'.DAT')
100 CONTINUE
STOP
ENDThose codes are works fine.
I only want to know, how to change all of this files' path to another folder inside the main program folder.

Thanks in advance,
Shade

 

[DrClaude]

Add another character variable containing the path, then concatenate both when opening:

CHARACTER(len=80) :: PATH
PATH = "./subfolder/"

open (1,FILE=trim(PATH)//FNAME)

The use of trim is necessary if PATH has a length greater than the actual path name.

Note that, for better practice, the series of if statements should be replace by a select case. Your program could also be more readable by incorporating the format inside the write statements, e.g., use

WRITE (FNAME,"('XY01UA',I2.2,'.DAT')") KC

instead of

WRITE (FNAME,10)KC
! lots of code
10 FORMAT('XY01UA',I2.2,'.DAT')

 

[shade rahmawati]

DrClaude, you save the day! Thank you very much. Now it's all good.