Python 로그 파일에 줄 수 제한 | Python Limit Maximum Lines of Log Files

Python

• Remove all lines but last 10 rows and a column.

lines = []
with open('log.txt', 'r') as f:
    lines = f.readlines()
with open('log.txt', 'w') as f:
    f.writelines(lines[:1] + lines[-9:])

log.txt

• Input

COLUMN
1
2
3
4
5
6
7
8
9
10
11
12

• Output

COLUMN
3
4
5
6
7
8
9
10
11
12