In /usr/bin/catchsegv line 54:
segv_output=`mktemp ${TMPDIR:-/tmp}/segv_output.XXXXXX` || exit
            ^-- SC2006: Use $(...) notation instead of legacy backticked `...`.
                    ^-------------^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
segv_output=$(mktemp "${TMPDIR:-/tmp}"/segv_output.XXXXXX) || exit


In /usr/bin/catchsegv line 89:
  (while read line; do
         ^--^ SC2162: read without -r will mangle backslashes.


In /usr/bin/catchsegv line 90:
     line=`echo $line | sed "s@^$prog\\(\\[.*\\)@\1@"`
          ^-- SC2006: Use $(...) notation instead of legacy backticked `...`.
                ^---^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
     line=$(echo "$line" | sed "s@^$prog\\(\\[.*\\)@\1@")


In /usr/bin/catchsegv line 92:
       \[*) addr=`echo "$line" | sed 's/^\[\(.*\)\]$/\1/'`
                 ^-- SC2006: Use $(...) notation instead of legacy backticked `...`.

Did you mean: 
       \[*) addr=$(echo "$line" | sed 's/^\[\(.*\)\]$/\1/')


In /usr/bin/catchsegv line 93:
	    complete=`addr2line -f -e "$prog" $addr 2>/dev/null`
                     ^-- SC2006: Use $(...) notation instead of legacy backticked `...`.
                                              ^---^ SC2086: Double quote to prevent globbing and word splitting.

Did you mean: 
	    complete=$(addr2line -f -e "$prog" "$addr" 2>/dev/null)


In /usr/bin/catchsegv line 95:
	      echo "`echo "$complete"|sed 'N;s/\(.*\)\n\(.*\)/\2(\1)/;'`$line"
                    ^-- SC2006: Use $(...) notation instead of legacy backticked `...`.

Did you mean: 
	      echo "$(echo "$complete"|sed 'N;s/\(.*\)\n\(.*\)/\2(\1)/;')$line"

For more information:
  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...
  https://www.shellcheck.net/wiki/SC2162 -- read without -r will mangle backs...
  https://www.shellcheck.net/wiki/SC2006 -- Use $(...) notation instead of le...