"[] [.tr] "
["]".[a-m][n-z][A-M][N-Z]"[" ]TTT ["]".[n-z][a-m][N-Z][A-M]"[" ]TTT
"[tr] !q"T:xld
["rot13: fatal: need exactly one argument"`q]:gld
["rot13: fatal: cannot open "1ST`q]:hld
a2_+=g
1A 0 [ that 0 is for RDONLY ]ld
     0 'o D0 1s>=hld
0Ou1=x  [ in a more complex spawner, this would be done under a fork ]ld
