Thus, rather than resolving tails.boum.org to 204.13.164.188, it resolves it to 1.2.3.4, the IP address of the scam copy of the Tails website. This would fool almost all users of Tails. To tail a file in Emacs : start Emacs, hit M-x (Alt and x keys together), and type 'tail-file'.Then, enter the filename to tail. The net result is that this will spawn an external tail -f process. Emacs is much more than a tool for tailing log files, however; it's packed with other features and functionality ranging from project planning tools to debugging, a mail and news.
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
Extract the last 20 lines from a file:
$ tail -20 file.txt
Output the newly appended lines of a file instantly:
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$ tail -f /var/log/wifi.log
Output newly appended lines, and keep trying if the file is temporarily inaccessible:
$ 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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$ tail -f /var/log/wifi.log
Output newly appended lines, and keep trying if the file is temporarily inaccessible:
$ 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.
Tails Universal Usb Installer
Long Tail Macaque For Sale
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