indi_eval -V (return code: 2)
Compile err: Bad function near `version'
indi_eval -h (return code: 1)
-h requires host name Usage: indi_eval [options] [exp] Purpose: evaluate an expression of INDI operands Version: $Revision: 1.5 $ Options: -b : beep when expression evaluates as true -d f : use file descriptor f already open to server -e : print each updated expression value -f : print final expression value -h h : alternate host, default is localhost -i : read expression from stdin -o : print operands as they change -p p : alternate port, default is 7624 -t t : max secs to wait, 0 is forever, default is 2 -v : verbose (cummulative) -w : wait for expression to evaluate as true [exp] is an arith expression built from the following operators and functons: ! + - * / && || > >= == != < <= pi sin(rad) cos(rad) tan(rad) asin(x) acos(x) atan(x) atan2(y,x) abs(x) degrad(deg) raddeg(rad) floor(x) log(x) log10(x) exp(x) sqrt(x) pow(x,exp) operands are of the form "device.name.element" (including quotes), where element may be: _STATE evaluated to 0,1,2,3 from Idle,Ok,Busy,Alert. _TS evaluated to UNIX seconds from epoch. Switch vectors are evaluated to 0,1 from Off,On. Light vectors are evaluated to 0-3 as per _STATE. Examples: To print 0/1 whether Security.Doors.Front or .Rear are in Alert: evalINDI -f '"Security.Doors.Front"==3 || "Security.Doors.Rear"==3' To exit 0 if the Security property as a whole is in a state of Ok: evalINDI '"Security.Security._STATE"==1' To wait for RA and Dec to be near zero and watch their values as they change: evalINDI -t 0 -wo 'abs("Mount.EqJ2K.RA")<.01 && abs("Mount.EqJ2K.Dec")<.01' Exit 0 if expression evaluates to non-0, 1 if 0, else 2