Take out the line of the specified field in the server log file
1. Take out the row of the specified field
grep password fileName #Retrieve the line containing the password field in the file name filename
grep -w password fileName #Exactly match the line code that extracts the password field in the file name filename
as follows (example):
grep -w password kk.log > kk.txt
2. Processing the retrieved data
1. If you delete and adjust the top number of each piece of data (maybe some codes, you need to delete them)
sed's/.{5}//' kk.txt #Delete the first five characters of each line of data in the file name kk.txt
The code is as follows (example):
sed 's/.\{5\}//' kk.txt > kk1.txt