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https://github.com/uutils/coreutils
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17 lines
1 KiB
Markdown
17 lines
1 KiB
Markdown
Rudimentary tail implementation.
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##Missing features:
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### Flags with features
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* `--bytes` : output the last K bytes; alternatively, use `-c` +K to output bytes starting with the Kth of each file
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* `--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.
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* `--pid` : with `-f`, terminate after process ID, PID dies
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* `--quiet` : never output headers giving file names
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* `--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`
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* `--verbose` : always output headers giving file names
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### Others
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The current implementation does not handle `-` as an alias for stdin.
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##Possible optimizations:
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* 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.
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