p4 logtail
Synopsis
Display the last block(s) of the error log.
Syntax
p4 [g-opts
] logtail
[-b blocksize
]
[-s start_offset
[-m maxBlocks
]]
[-l log
]
Description
The p4 logtail command displays the last block(s) of the error log, and the offset for the next block, when available.
Output consists of a series of lines in tagged format. The first line is
"... file LOG
", followed by multiple blocks of log
data. By default, all blocks from the
start_offset
are output until the end of the
file. The data is returned in blocks of size
blocksize
, each of which is tagged with
"... data
". The last line is "...
offset
next_offset
", where
next_offset
is the offset in the logfile
from which the next block of data is to be retrieved.
If you specify the name of an error log that has an associated counter, the p4 logtail command returns the current value of that counter. It also returns the current size of the log, at the end of the output (along with the ending offset in the log). The size and offset are the same if the command reads to the end of the log. For more information about counters, see "Logging and structured files" in the chapter "Administering Perforce: Superuser Tasks" in the Perforce Server Administrator's Guide: Fundamentals.
Options
|
The block size, in bytes. The default is 8192 bytes. |
|
If specified, the name of the log to display. |
|
The maximum number of blocks to output. Ignored unless
|
|
The offset (from the beginning of the file), in bytes. |
|
See “Global Options”. |
Usage Notes
Can File Arguments Use Revision Specifier? |
Can File Arguments Use Revision Range? |
Minimal Access Level Required |
---|---|---|
N/A |
N/A |
|
-
For more about administering Perforce, see the Perforce Server Administrator's Guide: Fundamentals.
Examples
p4 logtail -b 1024 -m 2 |
Display the last two kilobytes of the log file, as two separate blocks of 1,024 bytes each. |