==== noarg ====
LC_CTYPE=en_US.UTF-8 lam /home/src/regress/usr.bin/lam/in1.txt /home/src/regress/usr.bin/lam/in2.txt /home/src/regress/usr.bin/lam/in3.txt >  out_noarg.txt
diff -u /home/src/regress/usr.bin/lam/expect_noarg.txt out_noarg.txt

==== fonly ====
LC_CTYPE=en_US.UTF-8 lam -f 9 /home/src/regress/usr.bin/lam/in1.txt -f .9 /home/src/regress/usr.bin/lam/in2.txt  /home/src/regress/usr.bin/lam/in3.txt > out_fonly.txt
diff -u /home/src/regress/usr.bin/lam/expect_fonly.txt out_fonly.txt

==== Fback ====
LC_CTYPE=en_US.UTF-8 lam -F 010 /home/src/regress/usr.bin/lam/in1.txt /home/src/regress/usr.bin/lam/in2.txt  -f 7.6 /home/src/regress/usr.bin/lam/in3.txt > out_Fback.txt
diff -u /home/src/regress/usr.bin/lam/expect_Fback.txt out_Fback.txt

==== pminus ====
LC_CTYPE=en_US.UTF-8 lam -S '|' -F 9.9 /home/src/regress/usr.bin/lam/in1.txt -P -9.9 /home/src/regress/usr.bin/lam/in2.txt  /home/src/regress/usr.bin/lam/in3.txt > out_pminus.txt
diff -u /home/src/regress/usr.bin/lam/expect_pminus.txt out_pminus.txt

==== stdio ====
printf "11:12;21:22;" | LC_CTYPE=en_US.UTF-8 lam -t ':' - -S= -t ';' - -s '%' >  out_stdio.txt
diff -u /home/src/regress/usr.bin/lam/expect_stdio.txt out_stdio.txt