Multitrans
multitrans is a program found in apertium-lex-tools, used as a helper when training (see Learning rules from parallel and non-parallel corpora).
modes
-b
This will output the source along with all target translations, like lt-proc -b.
Doing just
multitrans sl-tl.autobil.bin -b
is equivalent to doing lt-proc -b sl-tl.autobil.bin
if the input consists of just correctly formatted lexical units (lt-proc -b fails on some misformattings that multitrans ignores).
-p
This will output the source side only, so used alone it turns into cat, but used with -t you can trim the tags to what bidix has.
So if bidix has an entry for kake<n><f>, you'll get
$ echo '^kake<n><f><sg><def>$' |multitrans nno-nob.autobil.bin -p -t ^kake<n><f><*>$
-m
This will output one entry on each line with a pair of translations, e.g.
$ echo '^obsternasig<adj><pst><sg><ind>$' |multitrans nor-eng.autobil.bin -m .[][0 0].[] ^obsternasig<adj><pst><sg><ind>/obstinate<adj><pst><sg><ind>$ .[][0 1].[] ^obsternasig<adj><pst><sg><ind>/obdurate<adj><pst><sg><ind>$ .[][0 2].[] ^obsternasig<adj><pst><sg><ind>/stubborn<adj><pst><sg><ind>$ .[][0 3].[] ^obsternasig<adj><pst><sg><ind>/refractory<adj><pst><sg><ind>$
Options
-t
Trims off tags that don't appear in bidix, e.g. if bidix has an entry for kake<n><f>:
$ echo '^kake<n><f><sg><def>$' |multitrans nno-nob.autobil.bin -p -t ^kake<n><f><*>$
-f
what does this do?
-n
Numbers the lines. Doesn't seem to make a difference under the -m mode.