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How do I open a log in Linux terminal?
Open up a terminal window and issue the command cd /var/log. Now issue the command ls and you will see the logs housed within this directory (Figure 1). Figure 1: A listing of log files found in /var/log/.
How do you continuously tail a log file?
The tail command is fast and simple. But if you want more than just following a file (e.g., scrolling and searching), then less may be the command for you. Press Shift-F. This will take you to the end of the file, and continuously display new contents.
What is head and tail command in Linux?
Introduction to the head and the tail Commands They are, by default, installed in all Linux distributions. As their names imply, the head command will output the first part of the file, while the tail command will print the last part of the file. Both commands write the result to standard output.
Which is the best way to follow a log file?
For multiple possibilities, you could maybe drop the grep and instead use a case within the while. The capital -F tells tail to watch for the log file to be rotated; i.e. if the current file gets renamed and another file with the same name takes its place, tail will switch over to the new file.
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