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    Delete lines in multiple text/DAT files that contain specific characters

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    • Adam BowskyA
      Adam Bowsky
      last edited by

      I have 730+ DAT files that contain lines of text that I need to delete from all of them. An example is below. I only used 3 lines, but some files contain over 1000 lines.

         1CONT-15507900000    00000000
         1N90-SS9035X         00000000
         1BFG-89442           00000000
      

      I need to delete the complete line that contains the text “N90-”. Please note that there is spacing preceding the text, and the spacing between the text and zeros cannot change. Also, the number preceding the text changes in each file, so the only constant is the “N90-”.

      I tried Googling it, but could not find what I needed. I heard there was a way to do it with Notepad++, but I was unsuccessful.

      Alan KilbornA supasillyassS 2 Replies Last reply Reply Quote 0
      • Alan KilbornA
        Alan Kilborn @Adam Bowsky
        last edited by Alan Kilborn

        @Adam-Bowsky

        You could use a Search > Mark... operation to bookmark lines containing N90-. Then delete the bookmarked lines using Search > Bookmark > Remove Bookmarked Lines.

        There are other ways as well.

        1 Reply Last reply Reply Quote 0
        • Adam BowskyA
          Adam Bowsky
          last edited by

          I think that only works in a single file at a time… there is no option to do that in the Find in Files tab. I am a novice, sorry.

          Alan KilbornA 1 Reply Last reply Reply Quote 0
          • supasillyassS
            supasillyass @Adam Bowsky
            last edited by

            @Adam-Bowsky

            1. Search
            2. Find in Files…
            3. Search Mode: Regular expression
            4. Find what: \r\n[ ]*.N90-.*00000000$ (Windows EOL)
            5. Replace with: (empty string)
            6. Set file filters and directory as appropriate
            7. Replace in Files
            Adam BowskyA 1 Reply Last reply Reply Quote 2
            • Alan KilbornA
              Alan Kilborn @Adam Bowsky
              last edited by

              @Adam-Bowsky

              Oh, sorry I missed the multi-file aspect of your question! Must not be my day.

              1 Reply Last reply Reply Quote 0
              • Adam BowskyA
                Adam Bowsky @supasillyass
                last edited by

                @supasillyass It worked! thank you!

                1 Reply Last reply Reply Quote 0
                • Adam BowskyA
                  Adam Bowsky
                  last edited by

                  @supasillyass It worked for files that had 1 digit in front of the text. Some of the files have 2, 3, and 4 digits, EX:

                  11N90-SS9035X 00000000
                  311N90-SS9035X 00000000
                  6001N90-SS9035X 00000000

                  Unfortunately, I am not sure of what the switches do, or if there is a different variance I need to use.

                  \r\n[ ]*.N90-.*00000000$

                  supasillyassS 1 Reply Last reply Reply Quote 0
                  • Michael VincentM
                    Michael Vincent
                    last edited by

                    @Adam-Bowsky

                    How about:

                    \r\n\s+\d{1,4}N90-.*\s+00000000$
                    

                    The \r\n matches a windows carriage return, line feed. If you’re not using Windows (CR/LF) but rather Unix (LF), just remove the ‘\r’.

                    The \s+ means match white space at least once but get as many as possible (you said there is preceding space on each line).

                    The \d{1,4} means match a digit at least once, but not more than 4 times - you said “Some of the files have 2, 3, and 4 digits”.

                    The N90- is self explanatory

                    The .* means match any character (.) or or more times (*).

                    The \s+ is spacing again before all the trailing '0’s, which themselves are self-explanatory.

                    Finally, the $ is stop at the end of the line.

                    Adam BowskyA 1 Reply Last reply Reply Quote 2
                    • Michael VincentM
                      Michael Vincent
                      last edited by

                      Using PREGGER:

                      PS VinsWorldcom@:~> pregger "/\r\n\s+\d{1,4}N90-.*\s+00000000$/"
                      The regular expression:
                      
                      (?-imsx:\r\n\s+\d{1,4}N90-.*\s+00000000$)
                      
                      matches as follows:
                      
                      NODE                     EXPLANATION
                      ----------------------------------------------------------------------
                      (?-imsx:                 group, but do not capture (case-sensitive)
                                               (with ^ and $ matching normally) (with . not
                                               matching \n) (matching whitespace and #
                                               normally):
                      ----------------------------------------------------------------------
                        \r                       '\r' (carriage return)
                      ----------------------------------------------------------------------
                        \n                       '\n' (newline)
                      ----------------------------------------------------------------------
                        \s+                      whitespace (\n, \r, \t, \f, and " ") (1 or
                                                 more times (matching the most amount
                                                 possible))
                      ----------------------------------------------------------------------
                        \d{1,4}                  digits (0-9) (between 1 and 4 times
                                                 (matching the most amount possible))
                      ----------------------------------------------------------------------
                        N90-                     'N90-'
                      ----------------------------------------------------------------------
                        .*                       any character except \n (0 or more times
                                                 (matching the most amount possible))
                      ----------------------------------------------------------------------
                        \s+                      whitespace (\n, \r, \t, \f, and " ") (1 or
                                                 more times (matching the most amount
                                                 possible))
                      ----------------------------------------------------------------------
                        00000000                 '00000000'
                      ----------------------------------------------------------------------
                        $                        before an optional \n, and the end of the
                                                 string
                      ----------------------------------------------------------------------
                      )                        end of grouping
                      ----------------------------------------------------------------------
                      
                      PS VinsWorldcom@:~>
                      
                      1 Reply Last reply Reply Quote 1
                      • supasillyassS
                        supasillyass @Adam Bowsky
                        last edited by

                        @Adam-Bowsky

                        The dot indicated matches a single character:

                        \r\n[ ]*.N90-.*00000000$
                                ^
                        

                        So change it to match a string of digits:

                        \r\n[ ]*[0-9]*N90-.*00000000$
                                ^^^^^^
                        

                        There’s also an edge case not matched where the first line has N90-, so follow up with: ^[ ]*[0-9]*N90-.*00000000\r\n

                        Adam BowskyA 1 Reply Last reply Reply Quote 2
                        • Adam BowskyA
                          Adam Bowsky @Michael Vincent
                          last edited by

                          @Michael-Vincent thank you! I believe this worked correctly. 1 question… “the match a digit at least once”… does this include preceding zeros? For example, if the line had looked like this: 00001N90-SS9035X? If so, would I change \d{1,4} to \d{1,5}?

                          1 Reply Last reply Reply Quote 0
                          • Michael VincentM
                            Michael Vincent
                            last edited by

                            @Adam-Bowsky said:

                            For example, if the line had looked like this: 00001N90-SS9035X? If so, would I change \d{1,4} to \d{1,5}?

                            It does not include preceding zeros by default. Zeros (0) are numbers (digits) so they would count towards the 4 maximum ( { …, 4} ). You’re correct in that if you had 4 leading zeros, then \d{1,5} would match it.

                            I like to be precise in my RegEx (as precise as possible) to not catch anything I shouldn’t. I’d rather be cautious than aggressive when doing a bulk replace like this. You could just use \d+ which would match at least 1 and as many digits in a row (similar to the \s+ we’ve been using).

                            Cheers.

                            Adam BowskyA 1 Reply Last reply Reply Quote 2
                            • Adam BowskyA
                              Adam Bowsky @supasillyass
                              last edited by

                              @supasillyass thanks!

                              1 Reply Last reply Reply Quote 0
                              • Adam BowskyA
                                Adam Bowsky @Michael Vincent
                                last edited by

                                @Michael-Vincent thanks again!

                                1 Reply Last reply Reply Quote 0
                                • Adam BowskyA
                                  Adam Bowsky
                                  last edited by

                                  Re: Delete lines in multiple text/DAT files that contain specific characters

                                  Hello,

                                  I have been using this process since you were kind enough to help me, and just notices that I am running into a problem with this expression: \r\n\s+\d{1,4}N90-.*\s+00000000$. in addition to deleting the line that has the N90- with a , it is also deleting the line above it. For example, the line above was deleted in addition to the line that I wanted to delete. This is happening on every file where N90- is present. Do you have any idea why this is happening?

                                        10DTP-1040K           00000000  This should not have been deleted, but was.
                                        10N90-SS7784X         00000000 This was deleted correctly.
                                  
                                  Adam BowskyA 1 Reply Last reply Reply Quote 0
                                  • Adam BowskyA
                                    Adam Bowsky @Adam Bowsky
                                    last edited by

                                    @Michael-Vincent

                                    Hello,

                                    I have been using this process since you were kind enough to help me, and just notices that I am running into a problem with this expression: \r\n\s+\d{1,4}N90-.*\s+00000000$. in addition to deleting the line that has the N90- with a , it is also deleting the line above it. For example, the line above was deleted in addition to the line that I wanted to delete. This is happening on every file where N90- is present. Do you have any idea why this is happening?

                                      10DTP-1040K           00000000  This should not have been deleted, but was.
                                      10N90-SS7784X         00000000 This was deleted correctly.
                                    
                                    1 Reply Last reply Reply Quote 0
                                    • guy038G
                                      guy038
                                      last edited by guy038

                                      Hello, @adam-bowsky, @michael-vincent, @supasillyass and All,

                                      Personally, I would use the following regex S/R, which should work in all the discussed cases !

                                      I simply assume that the N90- string, with this exact case, is preceded with, at least, one digit !

                                      SEARCH (?-si)^\h*\d+N90-.*\R?

                                      REPLACE Leave EMPTY

                                      Of course, the Regular expression search mode is selected and the Wrap around option is ticked

                                      Give a try !

                                      I’ll give you some explanations when everything is right ;-))

                                      Best Regards

                                      guy038

                                      1 Reply Last reply Reply Quote 1
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