n this illustration, we see that the request was made to display the last 13 lines of the mock_data.txt file. This command, in particular, is most useful when you are looking to examine the most recent information in a log file.

Possibly the most common way to utilize the tail command is to use the -f flag. Adding the -f flag will set the tail command to follow or watch the log file that you set it loose on. This is especially useful when troubleshooting Apache errors, and you only want to see the most recent activity. For example, you would run the tail -f command on the /usr/local/apache/logs/error_log, then go back to your web browser and visit the site displaying the error message. By visiting the site, we trigger a new entry to the log, which will now display in our command prompt that we ran tail -f in as well. 

n this illustration, we see that the request was made to display the last 13 lines of the mock_data.txt file. This command, in particular, is most useful when you are looking to examine the most recent information in a log file.

Possibly the most common way to utilize the tail command is to use the -f flag. Adding the -f flag will set the tail command to follow or watch the log file that you set it loose on. This is especially useful when troubleshooting Apache errors, and you only want to see the most recent activity. For example, you would run the tail -f command on the /usr/local/apache/logs/error_log, then go back to your web browser and visit the site displaying the error message. By visiting the site, we trigger a new entry to the log, which will now display in our command prompt that we ran tail -f in as well. 

n this illustration, we see that the request was made to display the last 13 lines of the mock_data.txt file. This command, in particular, is most useful when you are looking to examine the most recent information in a log file.

Possibly the most common way to utilize the tail command is to use the -f flag. Adding the -f flag will set the tail command to follow or watch the log file that you set it loose on. This is especially useful when troubleshooting Apache errors, and you only want to see the most recent activity. For example, you would run the tail -f command on the /usr/local/apache/logs/error_log, then go back to your web browser and visit the site displaying the error message. By visiting the site, we trigger a new entry to the log, which will now display in our command prompt that we ran tail -f in as well. 

n this illustration, we see that the request was made to display the last 13 lines of the mock_data.txt file. This command, in particular, is most useful when you are looking to examine the most recent information in a log file.

Possibly the most common way to utilize the tail command is to use the -f flag. Adding the -f flag will set the tail command to follow or watch the log file that you set it loose on. This is especially useful when troubleshooting Apache errors, and you only want to see the most recent activity. For example, you would run the tail -f command on the /usr/local/apache/logs/error_log, then go back to your web browser and visit the site displaying the error message. By visiting the site, we trigger a new entry to the log, which will now display in our command prompt that we ran tail -f in as well.