How to get the logical linked file?

[Enrico Venturi]

Hello colleagues,
I want to get the name of the faile logically linked by another one, in an executable program; I don't want to use s "system ll"; are there any system call, any library to get this information?

Thanks
Enrico

[James R. Ferguson · Accepted solution]

Hi Enrico:

Have a look at 'readlink(2)'.

Consider:

# ls -l /tmp/f1 /var/tmp/f1

-rw-r----- 1 root sys 0 Nov 25 13:14 /tmp/f1
lrwxr-x--- 1 root sys 7 Nov 25 13:14 /var/tmp/f1 -> /tmp/f1

With perl:

# perl -le '$_=readlink($ARGV[0]);print if defined' /var/tmp/f1

...returns:

/tmp/f1

Regards!

...JRF...

[Billa-User]

great information. this is very helpful for me