Sublime Text Regex Tips

July 19, 2019

I sometimes have to replace the nth character of a large text file with another character, an example being a badly formatted csv file. For example, if I want to replace the 7th character of each line in a file with a comma, using Sublime Text

Find:	^(.{7})(.)
Replace: \1,

Remember to enable /Re in the Sublime Find Replace dialog.

The same task can be performed with sed

sed 's/./,/7' filename > newfilename