Help with regular expression

[Ruby Student]

[Note: parts of this message were removed to make it a legal post.]

Team,
A colleague asked me if I could write a script to:

Read a text file where each record has two words.
If the second word in the record is not 100% uppercase, write it to a file
and convert it to uppercase.
I wrote it in Ruby in about 5 lines using IO.foreach("/tmp/somefile.txt") do
|file| for the input file and fo = File.open("/tmp/somefile.out","a+") for
the output file, upcase method.
Then she threw a curve ball at me telling me that she wanted it in Korn
Shell using regular expression.
The facts are that I don't know how to do this using regular expressions.
I am not asking anyone to solve for me, but if you can tell me:

How do you compare, using regular expression, the second word in the input
record for upper case. In other words, if the second word has at least 1
lower-case char, it has to be flagged and translated to upper-case.

I will deal with the I/O issues in Korn Shell.

Thank you

 

[Evgeniy Dolzhenko]

/\b[A-Z]+$/
will match if last word in string is not 100% upppercase

 

[Rob Biedenharn]

I think you want to use

string =~ ere

ere is an extended regular expression.

You might also be able to exploit:

typeset -u somevar

which causes $somevar to be upcased
(e.g., somevar='hello'; [ $somevar == 'HELLO' ] is true)

man ksh is now your friend.

-Rob

/\b[A-Z]+$/
will match if last word in string is not 100% upppercase

Team,
A colleague asked me if I could write a script to:

Read a text file where each record has two words.
If the second word in the record is not 100% uppercase, write it to
a file
and convert it to uppercase.
I wrote it in Ruby in about 5 lines using IO.foreach("/tmp/
somefile.txt") do
|file| for the input file and fo = File.open("/tmp/somefile.out","a
+") for
the output file, upcase method.
Then she threw a curve ball at me telling me that she wanted it in
Korn
Shell using regular expression.
The facts are that I don't know how to do this using regular
expressions.
I am not asking anyone to solve for me, but if you can tell me:

How do you compare, using regular expression, the second word in
the input
record for upper case. In other words, if the second word has at
least 1
lower-case char, it has to be flagged and translated to upper-case.

I will deal with the I/O issues in Korn Shell.

Thank you

Rob Biedenharn http://agileconsultingllc.com
(e-mail address removed)

 

[Hugh Sasse]

/\b[A-Z]+$/
will match if last word in string is not 100% upppercase

s/not//

If you convert a string to uppercase, and it already is all uppercase,
then it will be unchanged.... I'd use awk if a dependence on ruby is
not allowed, and no regexp needed.

 

[Ruby Student]

[Note: parts of this message were removed to make it a legal post.]

/\b[A-Z]+$/
will match if last word in string is not 100% upppercase

s/not//

If you convert a string to uppercase, and it already is all uppercase,
then it will be unchanged.... I'd use awk if a dependence on ruby is
not allowed, and no regexp needed.

Thanks to everyone for your help!

 

[Brian Candler]

How do you compare, using regular expression, the second word in the

input
record for upper case.

man sed
man expr
man tr

For further help, try the comp.unix.shell group

 

[Brian Candler]

Also:

while read firstword rest; do
echo "First word is $firstword"
echo "Rest of line is $rest"
done

 

[Ruby Student]

[Note: parts of this message were removed to make it a legal post.]

Also:

while read firstword rest; do
echo "First word is $firstword"
echo "Rest of line is $rest"
done

Thanks to everyone for your help and recommendations!