-n      Read commands but do not execute them.  This may be used
                      to  check  a  shell  script  for syntax errors.

#!/bin/bash

echo
echo " File contents:"
head -20 se-*

echo
echo " Results of syntax check, noexec:"
for script in se-*
do
  echo
  echo " Results for $script:"
  bash -n $script
done

exit 0

$ ./run-all 

 File contents:
==> se-1 <==
#!/bin/bash

if [ something ]
then
  :
else
  :
fi

if [ other ]
  :
else
  :
fi

==> se-2 <==
#!/bin/bash

echo "$(( 0 == 1 ))"

echo "$(( 0 == 1)"

==> se-3 <==
#!/bin/bash

for xxx
do
  :
done

for yyy
do
  :
else
done

==> se-4 <==
#!/bin/bash

echo 1 | cat

| echo 2

==> se-5 <==
#!/bin/bash

echo 1 | cat

& echo 2

==> se-6 <==
#!/bin/bash

[ 0 ] && echo hi

[ 1 ] || echo lo

[ 0 ] &&

==> se-7 <==
#!/bin/bash

echo {1..10}

a() { echo hi; }

b() { echo lo } # omitted semi-colon before }

 Results of syntax check, noexec:

 Results for se-1:
se-1: line 12: syntax error near unexpected token `else'
se-1: line 12: `else'

 Results for se-2:
se-2: line 5: unexpected EOF while looking for matching `"'
se-2: line 6: syntax error: unexpected end of file

 Results for se-3:
se-3: line 11: syntax error near unexpected token `else'
se-3: line 11: `else'

 Results for se-4:
se-4: line 5: syntax error near unexpected token `|'
se-4: line 5: `| echo 2'

 Results for se-5:
se-5: line 5: syntax error near unexpected token `&'
se-5: line 5: `& echo 2'

 Results for se-6:
se-6: line 8: syntax error: unexpected end of file

 Results for se-7:
se-7: line 8: syntax error: unexpected end of file