<s>
wish	O
(	O
Windowing	O
Shell	O
)	O
is	O
a	O
Tcl	B-Operating_System
interpreter	O
extended	O
with	O
Tk	B-Application
commands	I-Application
,	O
available	O
for	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
supporting	O
the	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
,	O
as	O
well	O
as	O
macOS	B-Application
,	O
Microsoft	B-Application
Windows	I-Application
,	O
and	O
Android	B-Application
.	O
</s>
<s>
It	O
provides	O
developers	O
the	O
ability	O
to	O
create	O
GUI	O
widgets	O
using	O
the	O
Tk	B-Application
toolkit	I-Application
and	O
the	O
Tcl	B-Operating_System
programming	I-Operating_System
language	I-Operating_System
.	O
</s>
<s>
wish	O
is	O
open-source	B-Application
under	O
the	O
BSD	B-Operating_System
License	I-Operating_System
,	O
and	O
is	O
currently	O
part	O
of	O
the	O
Tcl/Tk	B-Application
programming	O
suite	O
.	O
</s>
<s>
More	O
often	O
wish	O
is	O
run	O
with	O
a	O
name	O
of	O
a	O
file	O
containing	O
a	O
Tcl/Tk	B-Application
script	O
as	O
a	O
parameter	O
.	O
</s>
<s>
It	O
is	O
also	O
possible	O
to	O
run	O
directly	O
Tcl/Tk	B-Application
scripts	O
;	O
in	O
Unix	B-Application
using	O
the	O
shebang	B-Operating_System
construction	O
;	O
in	O
Windows	O
by	O
associating	O
the	O
.tcl	O
extension	O
with	O
the	O
wish	O
program	O
.	O
</s>
