removing a line from a text document

[Kevin]

this is the whole code i am using for testing

Code:

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str a b
b="remove this line"
a.getfile("$Desktop$\test.txt")
str s
foreach s a
,if b=s
,,a.findreplace(b)
,,del "$Desktop$\test.txt"
,,a.setfile("$Desktop$\test.txt" -1)