In /usr/bin/gvmap.sh line 21:
  case $c in
  ^-- SC2213: getopts specified --, but it's not handled by this 'case'.
  ^-- SC2213: getopts specified -a, but it's not handled by this 'case'.


In /usr/bin/gvmap.sh line 22:
  v )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 28:
  V )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 32:
  K )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 35:
  A )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 38:
  T )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 41:
  e )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 44:
  n )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 47:
  g )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 50:
  E )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 53:
  N )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 56:
  G )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 59:
  o )
  ^-- SC2214: This case is not specified by getopts.


In /usr/bin/gvmap.sh line 63:
    print -u 2 $OPTARG requires a value
               ^-----^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
    print -u 2 "$OPTARG" requires a value


In /usr/bin/gvmap.sh line 69:
      getopts -a gvmap "$OPTSTR" x '-?'
                 ^---^ SC2034: gvmap appears unused. Verify use (or export if used externally).


In /usr/bin/gvmap.sh line 81:
  if [ -n $VERBOSE ]
          ^------^ SC2070: -n doesn't work with unquoted arguments. Quote or use [[ ]].


In /usr/bin/gvmap.sh line 85:
  $LAYOUT -Goverlap=prism $FLAGS1 | gvmap $FLAGS2 | neato -n2 $FLAGS3
                          ^-----^ SC2086: Double quote to prevent globbing and word splitting.
                                          ^-----^ SC2086: Double quote to prevent globbing and word splitting.
                                                              ^-----^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
  $LAYOUT -Goverlap=prism "$FLAGS1" | gvmap "$FLAGS2" | neato -n2 "$FLAGS3"


In /usr/bin/gvmap.sh line 87:
  while $(( $# > 0 ))
        ^-----------^ SC2084: Remove '$' or use '_=$((expr))' to avoid executing output.


In /usr/bin/gvmap.sh line 89:
    if [ -f $1 ]
            ^-- SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
    if [ -f "$1" ]


In /usr/bin/gvmap.sh line 91:
      if [ -n $VERBOSE ]
              ^------^ SC2070: -n doesn't work with unquoted arguments. Quote or use [[ ]].


In /usr/bin/gvmap.sh line 95:
      $LAYOUT -Goverlap=prism $FLAGS1 $1 | gvmap $FLAGS2 | neato -n2 $FLAGS3
                              ^-----^ SC2086: Double quote to prevent globbing and word splitting.
                                      ^-- SC2086: Double quote to prevent globbing and word splitting.
                                                 ^-----^ SC2086: Double quote to prevent globbing and word splitting.
                                                                     ^-----^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
      $LAYOUT -Goverlap=prism "$FLAGS1" "$1" | gvmap "$FLAGS2" | neato -n2 "$FLAGS3"

For more information:
  https://www.shellcheck.net/wiki/SC2070 -- -n doesn't work with unquoted arg...
  https://www.shellcheck.net/wiki/SC2084 -- Remove '$' or use '_=$((expr))' t...
  https://www.shellcheck.net/wiki/SC2034 -- gvmap appears unused. Verify use ...