linux - The online log file is very large, 200M. If you use VI to view it, it will freeze. How to search the content?

Question

The online log file is very large, 200M. If you use VI to view it, it will freeze. How to search the content?

Answer 1

You can use grep to search, supports regular expressions

Or you can use head tail etc. to view the content of the head and tail

Or use sed to view the content within the specified range. sed also supports string ranges, such as sed -nre '/regex1/,/regex2/p' log can print the log between the two matching regular expressions

In addition, awk can display specified columns

If there is really no available tool, you can use perl one-liner or script instead. Although this language is old, regular expressions are very powerful and worth learning

Answer 2

Use the less command.
less file.

Answer 3

To search, generally use cat file_name | grep search_string

Answer 4

Why not just grep?