从文本文件中删除长行（Notepad ++ / EditPlus）

Question

I have a very big text file. Every line in this textfile has a complete sentence in it. Now I have to remove every line/sentence with more than x characters in it and just keep the lines with <=x characters.

Is this even possible? Can i do this with Notepad++/EditPlus or Regular Expressions?

Thank you for your help!

Answer 1

This is solution for Notepad++

Choose "Regular expression" in Search Mode. Make sure ". matches newline" checkbox is unchecked .

Find what: .{x}.+

Replace with: (empty)

If you don't want to leave an empty line after replacement:

Find what: .{x}.+(\\r?\\n|\\n|$)

Replace x with number of your choice.

Answer 2

Using bash:

$ awk '{if (length($0) <= x) print $0; }'  myfyle.txt

Where x is the length. It will print the lines smaller than x .

See Awk Tutorial and Introduction for more awk goodies.

Answer 3

This is the solution for Editplus version 3.70.

The following will delete any line that is 201 characters or more if you want to keep lines that are <= 200.

• Find what: ^.{201,}.*\\n
• Leave replace with blank
• Check regular expression

Note the comma after the 201.