aleph

aleph --version (return code: 0)

Aleph 3.14159265-1.15-2.1-0.1 (TeX Live 2015/Debian)
kpathsea version 6.2.1
Copyright 2015 Aleph task force.
There is NO warranty.  Redistribution of this software is
covered by the terms of both the Aleph copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the Aleph source.
Primary author of Aleph: Aleph task force.

aleph --help (return code: 0)

Usage: aleph [OPTION]... [TEXNAME[.tex]] [COMMANDS]
   or: aleph [OPTION]... \FIRST-LINE
   or: aleph [OPTION]... &FMT ARGS
  Run Aleph on TEXNAME, usually creating TEXNAME.dvi.
  Any remaining COMMANDS are processed as Aleph input, after TEXNAME is read.
  If the first line of TEXNAME is %&FMT, and FMT is an existing .fmt file,
  use it.  Else use `NAME.fmt', where NAME is the program invocation name,
  most commonly `aleph'.

  Alternatively, if the first non-option argument begins with a backslash,
  interpret all non-option arguments as a line of Aleph input.

  Alternatively, if the first non-option argument begins with a &, the
  next word is taken as the FMT to read, overriding all else.  Any
  remaining arguments are processed as above.

  If no arguments or options are specified, prompt for input.

-etex                   enable e-TeX extensions
[-no]-file-line-error   disable/enable file:line:error style messages
-fmt=FMTNAME            use FMTNAME instead of program name or a %& line
-halt-on-error          stop processing at the first error
-ini                    be inialeph, for dumping formats; this is implicitly
                          true if the program name is `inialeph'
-interaction=STRING     set interaction mode (STRING=batchmode/nonstopmode/
                          scrollmode/errorstopmode)
-ipc                    send DVI output to a socket as well as the usual
                          output file
-ipc-start              as -ipc, and also start the server at the other end
-jobname=STRING         set the job name to STRING
-kpathsea-debug=NUMBER  set path searching debugging flags according to the
                          bits of NUMBER
[-no]-mktex=FMT         disable/enable mktexFMT generation (FMT=tex/tfm)
-output-comment=STRING  use STRING for DVI file comment instead of date
-output-directory=DIR   use existing DIR as the directory to write files in
[-no]-parse-first-line  disable/enable parsing of first line of input file
-progname=STRING        set program (and fmt) name to STRING
-recorder               enable filename recorder (always on)
[-no]-shell-escape      disable/enable \write18{SHELL COMMAND}
-shell-restricted       enable restricted \write18
-src-specials           insert source specials into the DVI file
-src-specials=WHERE     insert source specials in certain places of
                          the DVI file. WHERE is a comma-separated value
                          list: cr display hbox math par parend vbox
-help                   display this help and exit
-version                output version information and exit

Email bug reports to tex-k@tug.org.