SED help with first character in line.
 

So I have this sed command that will replace " l " with " I " and fix many other l and I mistakes. I have this script running through subtitles and it has worked great so far. The problem that I am running into is when the first letter is a lower case L and should be and upper case I.

now my sed command will not work because there is no space before the l.


Is there a way I can have it change l to I if its at the beginning of a sentence?

Thanks

mac

Simply tell sed that you may have leading space(s) (and perhaps trailing ones) or you can have a look at word boundaries.

Check here for more information.

To get the most out of commands like sed, you should learn how to use regular expressions. In this case you "anchor" the pattern to the beginning of the line with "^".

You can probably also combine a lot of your patterns with character ranges and backreferences.


Here are a few regular expressions tutorials:
http://mywiki.wooledge.org/RegularExpression
http://www.grymoire.com/Unix/Regular.html
http://www.regular-expressions.info/

Thanks, that worked.