[Solved] How to search and replace a variable value from a list in text file?

[tiffle]

To read lines from a file one at a time and then remove that line and repeat the process until there are no more lines left you should take a look at my subroutine that I posted here;

Subroutine to Extract a Number of Lines from the Start of a List of Items

Purpose This subroutine extracts a specified number of lines (chunk size) from the start of a list held in a text file. Those lines are returned to the calling macro. Additionally, those lines are removed from the start of the list and, optionally, they are appended at the end of the list after which the list is written back to the file. Diagrammatically This shows the list (a, b, c, d, e, f, g) before and after a single call with a chunk size of 3. Starting List Consume: 'No' Consume: …

To create the “log” you can simply append the line you got from the subroutine to a file of your choosing using the Append to File action action:Write to a File [Keyboard Maestro Wiki]

I’ll also point you to a very similar question you asked before:

[Solved] How to Open X Number of URLs at a Time in Order From a Master List?

I have a master list of 50 URLs, and I want to open 6 URLs at a time whenever macro is triggered. When next time same macro is triggered, I want the next 6 URLs to open, and so on. In the last set i.e. a set of URLs after 42-48, macro may open just 2 URLs 48-50 or go ahead and open total 6 URLs fetching URLs from the beginning of the list (i.e. opening URLs 49, 50, 1, 2, 3, 4). I am fine either way. How to achieve that? Sharing a set of actions that I currently use in a different macro. This…

To demonstrate the use of the subroutine, here's a macro I've put together that does what you're asking:

Download Macro(s): Test Read File Line by Line and Log.kmmacros (4.6 KB)

Macro-Image

Macro-Notes

• Macros are always disabled when imported into the Keyboard Maestro Editor.
  • The user must ensure the macro is enabled.
  • The user must also ensure the macro's parent macro-group is enabled.

System Information

• macOS 10.15.7
• Keyboard Maestro v10.2

Please note the following:

1. You need to download and install the subroutine I linked to above.
2. The two actions coloured red need to be filled in with your two filename paths: the first the input file and the second the log file.
3. The group action coloured orange - you will need to put your desired processing of each line of text obtained from the file here. The variable containing the text is called Local__LineToProcess

I hope you find this useful.