Print the last 10 lines of each named file (or standard input if - is specified) on standard output. If more than one file is specified, the output includes a header at the beginning of each file:
Begin printing at nth item from end-of-file. k specifies the item to count: l (lines, the default), b (blocks), or c (characters).
Same as -n, but use the default count of 10.
Like -n, but start at nth item from beginning of file.
Like -k, but count from beginning of file.
Print last num bytes. An alternate blocksize may be specified:
Don’t quit at the end of file; “follow” file as it grows and end when the user presses Ctrl-c. Following by file descriptor is the default, so -f, --follow, and --follow=descriptor are equivalent. Use --follow=name to track the actual name of a file even if the file is renamed, as with a rotated log file.
Identical to --follow=name --retry.
Print a help message and exit.
Print the last num lines.
Used with --follow=name to reopen a file whose size hasn’t changed after num iterations (default 5), to see if it has been unlinked or renamed (as with rotated log files).
Used with -f to end when process ID pid dies.
Suppress filename headers.
With -f, keep trying to open a file even if it isn’t ...