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read into a range of character

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# 1  
Old 11-05-2011
read into a range of character
i have this problem:
i must hide a string with a character such as _ by command
Code:
WORD=string;
XXX=`echo $WORD | sed 's/[a-z]/_/g'

but after, users must send in input a character and i must to replace the _ with the input character or better i can do this
Code:
[a-z]-$CHARS_INPUT

i have think to use command tr but i don't use this because if i do
Code:
echo $WORD | sed 's/[a-z]/_/g' | tr _ $CHARS_INPUT

it doesn't work because change all _ with the input chars....
# 2  
Old 11-05-2011
I didn't quite understand your requirement! Can you illustrate with an example?... The input string and expected output...

--ahamed
# 3  
Old 11-05-2011
Quote:
Originally Posted by ahamed101
I didn't quite understand your requirement! Can you illustrate with an example?... The input string and expected output...

--ahamed
if the user at the first read command insert "a" at the next iteration of while the user can insert [b-z]... if the users insert "f" the next [b-z] but without "f" and so on...
# 4  
Old 11-05-2011
It didn't help at all Smilie... May be someone else can interpret it better...
Give an example input/output and show me...

--ahamed
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