System Configuration
acct
confstr
ctermid
devname
ethers
getbsize
getcap
getdiskbyname
getdomainname
getdtablesize
getfsent
getfsstat
getgrent
getgrouplist
gethostbyname
gethostid
gethostname
getloadavg
getmntinfo
getnetent
getnetgrent
getpagesize
getprotoent
getpwent
getrpcent
getservent
getttyent
getusershell
pathconf
pwcache
sysconf
sysctl
ttyname
uname