a 1
a+ +1
a5 !    1!
a05 !00001!
b file
c tmp
d tmp
e 
f 600
g 1
h tmp/file
i file
j f
k f
l1 1990-06-22+12:00:00.0000000000 646056000.0000000000 TH=12 TI=12 TM=00 TT=12:00:00.0000000000 Td=22 TD=06/22/90 Tj=173 Tm=06 TU=24 Tw=5 TW=25 Ty=90 TY=1990
l2 M=-rw-------
l3 t=Fri Jun 22 12:00:00.0000000000 1990
l4 y=f Y=f
percent it%works%
string-left !tmp/file  !
string-right !  tmp/file!
trunc-L !tmp/fi    !
trunc-R !    tmp/fi!