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Change first letter of a word from lower case to upper case


 
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# 1  
Old 10-20-2013
Change first letter of a word from lower case to upper case

Hi all,

I am trying to find a way to change first letter in a word from lower case to upper case. It should be done for each first word in text or in paragraph, and also for each word after punctuation like
Code:
. ; : ! ?

I found the following command

Code:
sed -i 's/[\.;:!?]\s*./\U&\E/g' $@ filename

but unfortunately it does not work.

Your help is greatly appreciated.
# 2  
Old 10-20-2013
Try

Sed

for each word

Code:
$ echo foo test | sed 's/\([a-z]\)\([a-zA-Z0-9]*\)/\u\1\2/g'
Foo Test

Awk

Code:
$ echo foo test  | awk '{$1=toupper(substr($1,0,1))substr($1,2)}1'
Foo test


Last edited by Akshay Hegde; 10-20-2013 at 12:03 PM..
This User Gave Thanks to Akshay Hegde For This Post:
# 3  
Old 10-20-2013
An approach using awk:
Code:
awk '
        {
                for ( i = 1; i <= NF; i++ )
                {
                        if ( i == 1 )
                                $i = sprintf ( "%s", toupper ( substr ( $i, 1, 1 ) ) substr ( $i, 2 ) )
                        if ( $i ~ /[.;:!?]/ )
                                $(i+1) = sprintf ( "%s", toupper ( substr ( $(i+1), 1, 1 ) ) substr ( $(i+1), 2 ) )
                }
                print
        }
' file

These 2 Users Gave Thanks to Yoda For This Post:
# 4  
Old 10-20-2013
Quote:
Originally Posted by Akshay Hegde
Try

Sed

for each word

Code:
$ echo foo test | sed 's/\([a-z]\)\([a-zA-Z0-9]*\)/\u\1\2/g'

Foo Test

Awk

Code:
$ echo foo test  | awk '{$1=toupper(substr($1,0,1))substr($1,2)}1'
Foo test

the first command changes every word in the text

second command change every first word in the paragraph but not after the specified punctuation
# 5  
Old 10-20-2013
Yeah for that you need to refer Yoda's solution
# 6  
Old 10-20-2013
Quote:
Originally Posted by Yoda
An approach using awk:
Code:
awk '
        {
                for ( i = 1; i <= NF; i++ )
                {
                        if ( i == 1 )
                                $i = sprintf ( "%s", toupper ( substr ( $i, 1, 1 ) ) substr ( $i, 2 ) )
                        if ( $i ~ /[.;:!?]/ )
                                $(i+1) = sprintf ( "%s", toupper ( substr ( $(i+1), 1, 1 ) ) substr ( $(i+1), 2 ) )
                }
                print
        }
' file

your code works great.
thank you very much
# 7  
Old 10-20-2013
i'm using this function to change the first letter of a word to caps:
Code:
Capitalize() { # STRING
# Makes first char capital
# by stevea & shorten by dd_wizard @ fedoraforum.org
   low=${1,,}
   echo ${low^}
}

Call it like:
Code:
echo $(Capitalize abc)

Hope this helps for re-usage, imho easier, though doesnt do parsings.

Last edited by sea; 10-20-2013 at 01:38 PM..
This User Gave Thanks to sea For This Post:

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