In /usr/bin/ps2ascii line 15:
if ( test $# -eq 0 ) then
   ^---------------^ SC2233: Remove superfluous (..) around condition.


In /usr/bin/ps2ascii line 16:
    $GS_EXECUTABLE $OPTIONS -o - -
                   ^------^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
    $GS_EXECUTABLE "$OPTIONS" -o - -


In /usr/bin/ps2ascii line 17:
elif ( test $# -eq 1 ) then
     ^---------------^ SC2233: Remove superfluous (..) around condition.


In /usr/bin/ps2ascii line 18:
    $GS_EXECUTABLE $OPTIONS -o - "$1"
                   ^------^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
    $GS_EXECUTABLE "$OPTIONS" -o - "$1"


In /usr/bin/ps2ascii line 20:
    $GS_EXECUTABLE $OPTIONS -o "$2" "$1"
                   ^------^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
    $GS_EXECUTABLE "$OPTIONS" -o "$2" "$1"

For more information:
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...
  https://www.shellcheck.net/wiki/SC2233 -- Remove superfluous (..) around co...