usage: xschem [options] [schematic | symbol ]
Options:
  -h  --help           Print this help.
  -b  --detach         Detach Xschem from console (no output and no input from console)
  -n  --netlist        Do a netlist of the given schematic cell.
  -v  --version        Print version information and exit.
  -V  --vhdl           Set netlist type to VHDL.
  -S  --simulate       Run a simulation of the current schematc file 
                       (spice/Verilog/VHDL, depending on the netlist 
                       type chosen).
  -w  --verilog        Set netlist type to Verilog.
  --tcl <tcl_cmd>      Execute specified tcl instructions before any other action,
                       after sourcing xschemrc, this can be used to change xschemrc variables.
  --preinit <tcl_cmd>  Execute specified tcl instructions before any other action,
                       and before loading xschemrc.
  --script <file>      Execute specified tcl file as a command script (perhaps with xschem  commands).
  --command <tcl_cmd>  Execute specified tcl commands after completing startup.
  --diff <file>        Show differences with given file.
  --tcp_port <number>  Listen to specified tcp port for client connections. (number >=1024).
  -i  --no_rcload      Do not load any xschemrc file.
  --netlist_path <path>
  -o <path>            Set output path for netlist.
  --netlist_filename <file>    
  -N <file>            Set name (only name, not path) of top level netlist file.
  -t  --tedax          Set netlist type to tEDAx.
  -s  --spice          Set netlist type to SPICE.
  -y  --symbol         Set netlist type to SYMBOL (used when drawing symbols)
  -x  --no_x           Don't use X (only command mode).
  -z  --rainbow        Use a raibow-looking layer color table.
  -W  --waves          Show simulation waveforms.
  -f  --flat_netlist   Set flat netlist (for spice format only).
  -r  --no_readline    Start without the tclreadline package, this is necessary
      --pipe           if stdin and stdout are to be redirected. This also prevents xschem
                       from closing stdin / stdout / stderr even if invoked from pipes.
  -c  --color_ps       Set color postscript.
  --plotfile <file>    Use <file> as output for plot (png, svg, ps).
  --rcfile <file>      Use <file> as a rc file for startup instead of the
                       default xschemrc.
  -p  --postscript
      --pdf            Export pdf schematic.
      --png            Export png schematic.
      --svg            Export svg schematic.
  -q  --quit           Quit after doing things (no interactive mode).
  -l <file>
  --log <file>         Set a log file.
  -d <n>
  --debug <n>          Set debug level:  1,  2,  3,..  C program debug.
                                       -1, -2, -3...  TCL frontend debug.

xschem: interactive schematic capture program

Example:   xschem counter.sch
the schematic file `counter.sch' will be loaded.