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[SOLVED] Find last occurence of pattern in text file?
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[SOLVED] Find last occurence of pattern in text file?
#3
Sorry for the confusion. I was trying to turn a Windows batch script into Python, that used grep + sed + tail, but you're right, the meat was in the grep + sed.

The following works to find two close by slightly different patterns starting from the end of the file:

pattern = "^START_A.+to (.+?) \(.+$"
p = re.compile(pattern)
for line in reversed(list(open(INPUTFILE))):
	m = p.search(line.rstrip())
	if m:
		print(m.group(1))
		break

pattern = "^START_B.+to (.+?) \(.+$"
p = re.compile(pattern)
for line in reversed(list(open(INPUTFILE))):
	m = p.search(line.rstrip())
	if m:
		print(m.group(1))
		break
I'll see if I can refine it so as to avoid needless copy/pasting.

Thank you!
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Messages In This Thread
RE: Find last occurence of pattern in text file? - by Winfried - Aug-13-2021, 07:00 PM

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