bash-4.1$ ls -l
total 1
-rw-r--r-- 1 manatwork manatwork 63 Dec 19 13:45 your-file

bash-4.1$ cat your-file
aaa         something
bbb         someother
ccc         blabla

bash-4.1$ awk '{ print $2 > $1 }' your-file

bash-4.1$ ls -l
total 4
-rw-r--r-- 1 manatwork manatwork 10 Dec 19 13:46 aaa
-rw-r--r-- 1 manatwork manatwork 10 Dec 19 13:46 bbb
-rw-r--r-- 1 manatwork manatwork  7 Dec 19 13:46 ccc
-rw-r--r-- 1 manatwork manatwork 63 Dec 19 13:45 your-file

bash-4.1$ cat aaa
something

bash-4.1$ cat bbb
someother

bash-4.1$ cat ccc
blabla