In /usr/bin/bashbug line 42:
: ${TMPDIR:=/tmp}
  ^-------------^ SC2223: This default assignment may cause DoS due to globbing. Quote it.


In /usr/bin/bashbug line 57:
do_help= do_version=
       ^-- SC1007: Remove space after = if trying to assign a value (for empty string, use var='' ... ).


In /usr/bin/bashbug line 96:
N=`echo 'hi there\c'`
  ^-----------------^ SC2006: Use $(...) notation instead of legacy backticked `...`.
  ^-----------------^ SC2116: Useless echo? Instead of 'cmd $(echo foo)', just use 'cmd foo'.

Did you mean: 
N=$(echo 'hi there\c')


In /usr/bin/bashbug line 99:
*)	n= c='\c' ;;
         ^-- SC1007: Remove space after = if trying to assign a value (for empty string, use var='' ... ).


In /usr/bin/bashbug line 113:
		echo $n "$0: Send to bash-testers? $c"
                     ^-- SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
		echo "$n" "$0: Send to bash-testers? $c"


In /usr/bin/bashbug line 114:
		read ans
                ^--^ SC2162: read without -r will mangle backslashes.


In /usr/bin/bashbug line 142:
		DEFEDITOR=vi
                ^-------^ SC2209: Use var=$(command) to assign output (or quote to assign string).


In /usr/bin/bashbug line 145:
		DEFEDITOR=vi
                ^-------^ SC2209: Use var=$(command) to assign output (or quote to assign string).


In /usr/bin/bashbug line 150:
: ${EDITOR=$DEFEDITOR}
  ^------------------^ SC2223: This default assignment may cause DoS due to globbing. Quote it.


In /usr/bin/bashbug line 152:
: ${USER=${LOGNAME-`whoami`}}
  ^-------------------------^ SC2223: This default assignment may cause DoS due to globbing. Quote it.
                   ^------^ SC2006: Use $(...) notation instead of legacy backticked `...`.

Did you mean: 
: ${USER=${LOGNAME-$(whoami)}}


In /usr/bin/bashbug line 154:
trap 'rm -rf "$TEMPDIR"; exit 1' 1 2 3 13 15
                                       ^-- SC2172: Trapping signals by number is not well defined. Prefer signal names.


In /usr/bin/bashbug line 159:
	UN=`uname -a`
           ^--------^ SC2006: Use $(...) notation instead of legacy backticked `...`.

Did you mean: 
	UN=$(uname -a)


In /usr/bin/bashbug line 219:
		echo $n "$0: Do you want to give up? $c"
                     ^-- SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
		echo "$n" "$0: Do you want to give up? $c"


In /usr/bin/bashbug line 221:
		read ans
                ^--^ SC2162: read without -r will mangle backslashes.


In /usr/bin/bashbug line 230:
	CURR_SUB=`grep '^Subject: ' "$TEMPFILE1" | sed 's|^Subject:[ 	]*||' | sed 1q`
                 ^-- SC2006: Use $(...) notation instead of legacy backticked `...`.

Did you mean: 
	CURR_SUB=$(grep '^Subject: ' "$TEMPFILE1" | sed 's|^Subject:[ 	]*||' | sed 1q)


In /usr/bin/bashbug line 239:
		echo $n "$0: Do you want to give up? $c"
                     ^-- SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
		echo "$n" "$0: Do you want to give up? $c"


In /usr/bin/bashbug line 241:
		read ans
                ^--^ SC2162: read without -r will mangle backslashes.


In /usr/bin/bashbug line 262:
echo $n "Send bug report to ${BUGADDR}? [y/n] $c"
     ^-- SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
echo "$n" "Send bug report to ${BUGADDR}? [y/n] $c"


In /usr/bin/bashbug line 263:
read ans
^--^ SC2162: read without -r will mangle backslashes.


In /usr/bin/bashbug line 268:
${RMAIL} $SMARGS < "$TEMPFILE1" || {
         ^-----^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
${RMAIL} "$SMARGS" < "$TEMPFILE1" || {


In /usr/bin/bashbug line 269:
	cat "$TEMPFILE1" >> $HOME/dead.bashbug
                            ^---^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
	cat "$TEMPFILE1" >> "$HOME"/dead.bashbug

For more information:
  https://www.shellcheck.net/wiki/SC1007 -- Remove space after = if trying to...
  https://www.shellcheck.net/wiki/SC2172 -- Trapping signals by number is not...
  https://www.shellcheck.net/wiki/SC2209 -- Use var=$(command) to assign outp...