Mondjuk így?
akion@quadra:~$ ls -l `which firefox`
lrwxrwxrwx 1 root root 21 júl 24 11:20 /usr/bin/firefox -> /opt/firefox4/firefox
akion@quadra:~$ ls -ld /usr/bin
drwxr-xr-x 2 root root 110592 aug 30 09:08 /usr/bin
akion@quadra:~$
És voila! Frissül az.
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