This is a list of command lines that should always
cause the shell to produce a `syntax error'.
-- 
Jeffrey Allen Neitzel

==== Unmatched " or ' ====
  1: "
  2: : nothing; "
  3: "; : nothing
  4: ( " )
  5: : nothing; ( " )
  6: ( " ); : nothing
  7: ( : nothing; " )
  8: ( "; : nothing )
  9: '
 10: : nothing; '
 11: '; : nothing
 12: ( ' )
 13: : nothing; ( ' )
 14: ( ' ); : nothing
 15: ( : nothing; ' )
 16: ( '; : nothing )

==== Unexpected `|', `^', or `\0' ====
 17: |
 18: ^
 19: |   |
 20: ^   ^
 21: | cat
 22: ^ cat
 23: echo Hello! |
 24: echo Hello! ^
 25: echo Hello! | cat |
 26: echo Hello! ^ cat ^
 27: echo Hello! |   | grep H
 28: echo Hello! ^   ^ grep H
 29: ||
 30: ^^
 31: |cat
 32: ^cat
 33: echo Hello!|
 34: echo Hello!^
 35: echo Hello!|cat|
 36: echo Hello!^cat^
 37: echo Hello!||grep H
 38: echo Hello!^^grep H

==== Too many `(' ====
 39: (
 40: ( echo Hello!
 41: ( ( echo Hello! )
 42: ( ( echo Hello! ); echo Hello again!
 43: echo Hello! | ( ( cat ) | grep H
 44: ( echo Hello! | ( ( cat ) | grep H )
 45: echo Hello! ^ ( ( cat ) ^ grep H
 46: ( echo Hello! ^ ( ( cat ) ^ grep H )

==== Too many `)' ====
 47: )
 48: echo Hello! )
 49: ( echo Hello! ) )
 50: ( echo Hello! ); echo Hello again! )
 51: echo Hello! | ( cat ) ) | grep H
 52: ( echo Hello! | ( cat ) ) | grep H )
 53: echo Hello! ^ ( cat ) ) ^ grep H
 54: ( echo Hello! ^ ( cat ) ) ^ grep H )

==== Empty `(   )' ====
 55: (   )
 56: ( (   ) )
 57: ( ( (   ) ) )
 58: ( echo Hello! ) | (   ) | ( grep H )
 59: ( ( echo Hello! ) | (   ) | ( grep H ) )
 60: ()
 61: (())
 62: ((()))
 63: (echo Hello!)|()|(grep H)
 64: ((echo Hello!)|()|(grep H))

==== Garbage before `(   )' ====
 65: :( echo Hello! )
 66: echo ( Hello! )
 67: : nothing </dev/null ( cat )
 68: </dev/null : nothing ( cat )

==== Garbage after `(   )' ====
 69: ( echo Hello! ):
 70: ( echo ) Hello!
 71: ( echo Hello! ) >/dev/null : nothing
 72: ( echo Hello! ) : nothing >/dev/null

==== Unexpected `<', `>', `>>', or Missing file name ====
 73: <
 74: >
 75: >>
 76: <>
 77: ><
 78: <>>
 79: >><
 80: cat < >/dev/null
 81: cat > </dev/null
 82: cat </dev/null >
 83: cat >/dev/null <
 84: </dev/nullcat
 85: </dev/null"cat"

==== Missing command ====
 86: </dev/null
 87: </dev/null >/dev/null
 88: >/dev/null
 89: >/dev/null </dev/null
 90: >>/dev/null
 91: >>/dev/null </dev/null

==== Here are some more bad subshells; Unexpected `|' ====
 92: </dev/null ( | )
 93: >/dev/null ( | )
 94: ( | ) </dev/null
 95: ( | ) >/dev/null
 96: </dev/null >/dev/null ( | )
 97: >/dev/null </dev/null ( | )
 98: </dev/null ( | ) >/dev/null
 99: >/dev/null ( | ) </dev/null
100: ( | ) </dev/null >/dev/null
101: ( | ) >/dev/null </dev/null

==== Here are some more bad subshells; Missing file name ====
102: </dev/null ( < )
103: >/dev/null ( < )
104: ( < ) </dev/null
105: ( < ) >/dev/null
106: </dev/null >/dev/null ( < )
107: >/dev/null </dev/null ( < )
108: </dev/null ( < ) >/dev/null
109: >/dev/null ( < ) </dev/null
110: ( < ) </dev/null >/dev/null
111: ( < ) >/dev/null </dev/null

==== Here are some more bad quotes; Cannot backslash escape same quote ====
112: echo "\""
113: echo '\''
114: echo "\"Hello World! =)\""
115: echo '\'Hello World! =)\''