mirror of
https://github.com/uutils/coreutils
synced 2024-12-19 17:43:52 +00:00
18 lines
1 KiB
Markdown
18 lines
1 KiB
Markdown
|
Rudamentary tail implementation.
|
|||
|
|
|
|||
|
|
##Missing features:
|
|||
|
|
|
|||
|
|
### Flags with features
|
|||
|
|
* `--bytes` : output the last K bytes; alternatively, use `-c` +K to output bytes starting with the Kth of each file
|
|||
|
|
* `--max-unchanged-stats` : with `--follow=name`, reopen a FILE which has not changed size after N (default 5) iterations to see if it has been unlinked or renamed (this is the usual case of rotated log files). With inotify, this option is rarely useful.
|
|||
|
|
* `--pid` : with `-f`, terminate after process ID, PID dies
|
|||
|
|
* `--quiet` : never output headers giving file names
|
|||
|
|
* `--retry` : keep trying to open a file even when it is or becomes inaccessible; useful when follow‐ing by name, i.e., with `--follow=name`
|
|||
|
|
* `--verbose` : always output headers giving file names
|
|||
|
|
|
|||
|
|
### Others
|
|||
|
|
The current implementation does not handle `-` as an alias for stdin.
|
|||
|
|
|
|||
|
|
##Possible optimizations:
|
|||
|
|
* Don't read the whole file if not using `-f` and input is regular file. Read in chunks from the end going backwards, reading each individual chunk forward.
|