[SOLVED] little help on making batch sfv files

steve51184 · 06-03-2011, 07:11 PM

hi I have 2 thing I'm trying to do with .sfv files so I'll start with the first..

the first thing i want to do is to make an .sfv file for ALL files in the current folder into a single .sfv file and this command does it perfectly and even checks if .sfv already exists and skips if it does:

Code:

cfv -C -tsfv

the second is to make an .sfv file for each file in the current folder and save it to it's own .sfv file and the best way i've found to do this so far is this:

Code:

for f in *.rar; do cksfv "$f" > "$f".sfv; done

this command works perfectly but unlike the first it doesn't check if the .sfv already exists so if there's 10 1gb files all with .sfv files already it'll just remake ALL the .sfv files again so as you can imagine it takes up a lot of time

if there a way to make it check if the .sfv already exists first? or possibly do it another better way?

thanks

Telengard · 06-03-2011, 09:59 PM

How about this?

Code:

for f in *.rar; do [[ -f "${f}.sfv" ]] || cksfv "$f" > "$f".sfv; done

I don't have the cksfv program, so I didn't test this, but I think it does what you want.

steve51184 · 06-04-2011, 05:06 AM

perfect thank you!!!

Telengard · 06-04-2011, 06:53 AM

You're welcome. It is good to know you found my reply helpful.

If this issue has been resolved then please consider using the thread tools to mark this thread solved.

steve51184 · 06-04-2011, 07:22 AM

Quote:

Originally Posted by Telengard

You're welcome. It is good to know you found my reply helpful.

If this issue has been resolved then please consider using the thread tools to mark this thread solved.

i've done that thank you

also if i'm not a bother could you possibly explain what this part of the command does

Code:

[[ -f "${f}.sfv" ]] ||

i'm guessing it looks for the file and if it exists skip the part after || and if it doesn't run the bit after || correct?

Telengard · 06-04-2011, 01:03 PM

Quote:

Originally Posted by steve51184

i'm guessing it looks for the file and if it exists skip the part after || and if it doesn't run the bit after || correct?

Yes, that is essentially how it works.

[[ opens a Bash conditional construct
-f is a Bash conditional expression which tests for the existence of a regular file with the given name and yields a true status if it was found.
${f}.sfv expands to the file name returned by * from the for loop, with the sfv extension appended.
|| operator causes the next stanza of the command list to be executed only if the previous stanza yielded a false status.

BTW I don't really know the proper name for segments of a command list, so stanza may not be correct.

steve51184 · 06-08-2011, 11:46 AM

Wow thank you

Dinamiz72 · 06-10-2016, 04:37 AM

Quote:

Originally Posted by Telengard

How about this?

Code:

for f in *.rar; do [[ -f "${f}.sfv" ]] || cksfv "$f" > "$f".sfv; done

I don't have the cksfv program, so I didn't test this, but I think it does what you want.

hi Telegard

I'd do the same thing but with the command "cfv"

it's possible

because at the time of changing the command does not work well

could you help me edit the files this string with cmd cfv

Many thanks