....

[root@home4 tmp]# grep love `whoami`
grep: root: 그런 파일이나 디렉토리가 없음
[root@home4 tmp]# which lover
/usr/bin/which: no lover in
(/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:
/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin)
[root@home4 tmp]# whereis rest
rest:
[root@home4 tmp]# whois mylover
[Querying whois.internic.net]
[whois.internic.net]

Whois Server Version 1.3

Domain names in the .com and .net domains can now be registered
with many different competing registrars. Go to http://www.internic.net
for detailed information.

No match for domain "MYLOVER".