What's the range of file descriptors I can use? 1

[goldenradium2001]

I read somewhere that I can only use file descriptor numbers 4-9. Then I read somewhere else that I can use up to 20 file descriptors.

Which one is right?

Thanks.

 

[jamisar]

os ?
prog you use ?
this is configurable!
/etc/system ?? /etc/default/??
/usr/include/sys/???
i don't remember, and now i am on a pc. vox clamantis in deserto.

 

[goldenradium2001]

I'm using LInux 7.1.

I'm just trying to learn scripting.

 

[jamisar]

linux is bsd-like
look at ??kernel??/config there should be a cfg-file to [re]build the kernel
at least you have 64 fd, my be 128 or more
why if you are learnig scripts, you don't try something
easyer ? vox clamantis in deserto.

 

[goldenradium2001]

maybe i should ask this question in my other file descriptors post.

 

[jamisar]

grep -i open /usr/include/limits.h
grep -i max the-same-file gives interesting infos. vox clamantis in deserto.