Tail for Win32 is used to monitor changes to files; displaying the changed lines in realtime. This makes Tail ideal for watching log files. Tail has a plugin architecture, which allows notifications to occur when certain keywords are detected in monitored files. At the moment a MAPI plugin is available, and work is in progress on an SMTP version. Thank you for your interest in Tails. Installing Tails can be quite long but we hope you will still have a good time:) We will first ask you a few questions to choose. We tested Tails 4.2 on 4 different Mac computers. The USB stick with Tails 4.2 worked on the iMac Late 2013 model running Mac OS High Sierra Version 10.13.6. It did not load on the following three Macs – MacBook Pro 2018 model running macOS Mojave Version 10.14.5, iMac 2010 model running OS X El Capitan Version 10.11.16 and Macbook Air early. Chef John's recipe for lobster mac and cheese is an elegant, decadent way to impress that special someone in your life. Cook lobster tails in skillet until slightly golden and about halfway cooked-through, about 2 minutes per side. Transfer tails to a plate to.

Display the last part of a file. Display the contents of file or, by default, it's standard input, to the standard output.

If more than a single file is specified, each file is preceded by a header consisting of the string >XXX< where XXX is the name of the file.

The Process Control keyboard shortcuts can be used while tail is running.

The display begins at a byte, line or 512-byte block location in the input.

Numbers having a leading plus (+) sign are relative to the beginning of the input, for example, -c +2 starts the display at the second byte of the input. Numbers having a leading minus (-) sign or no explicit sign are relative to the end of the input, for example, -n 2 displays the last two lines of the input.

The default starting location is -n 10, or the last 10 lines of the input.

The tail utility is expected to be a superset of the IEEE Std 1003.2-1992 (POSIX.2) specification. In particular, the -F, -b and -r options are extensions to that standard.

The tail utility exits 0 on success, and >0 if an error occurs.

Common Log File locations

/private/var/log
/Library/Logs
~/Library/Logs

The /private folder is hidden for protection. To view it with Finder, select Go > Go to Folder

Examples

How To Cook Lobster Tail For Mac And Cheese

Extract the last 20 lines from a file:

$ tail -20 file.txt

Output the newly appended lines of a file instantly:

$ tail -f /var/log/wifi.log

Output newly appended lines, and keep trying if the file is temporarily inaccessible:

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$ tail -F /var/log/wifi.log

DIsplay the last 40 lines from the system.log, continue until Ctrl-C is pressed:

$ tail -40 -f /var/log/system.log

Extract lines 40-50 from a file, first using head to get the first 50 lines then tail to get the last 10:

$ head -50 file.txt | tail -10

'Money will buy a pretty good dog, but it won't buy the wag of his tail' ~ Henry Wheeler Shaw

Related macOS commands:

cat - Concatenate and print (display) the content of files.
head - Display the first lines of a file.
sed - Stream Editor.
Console.app (Applications/Utilities) - Display macOS log files.
LNav.org - Log file Navigator.

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