Write a bash shell script that will display the total number of files, within a given di- rectory, whose names start with b and consist of exactly 5 characters. the name of the directory is given as command line argument at the shell prompt.
a sample run:
> testscript /bin/
4
> testscript /usr/include/
1
there are 4 matches in the /bin directory and 1 in the /usr/include directory.

which functions return a valid value without any arguments?

(-blank- and -blank- return a valid value without any arguments.)

1st -blank-

today

sqrt

count

2nd -blank-

round

now

sqrt

do not use any of these common illegal characters/symbols:

# pound

% percent

& ampersand

{ left curly bracket

} right curly bracket

\ back slash

< left angle bracket

> right angle bracket

* asterisk

? question mark

/ forward slash

  blank spaces

$ dollar sign

! exclamation point

' single quotes

" double quotes

: colon

@ at sign

the answer is clip art