38 lines
792 B
Markdown
38 lines
792 B
Markdown
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---
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title: Bash tail
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---
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## Bash tail
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Tail is a program to display the **tail** end of a text file. If no option is given, tail shows the last 10 lines of a given file.
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### Usage
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```bash
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tail [options] [file_names]
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```
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Most used options:
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* `-f`, display the last lines and then monitor the file. If new lines are added to the file, tail updates the display.
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* `-c NUM`, display the last `NUM` bytes of the file.
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* `-n NUM`, display the last `NUM` lines, instead of the last 10
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### Example
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To show the last 10 lines from file **log.txt**
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```bash
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tail log.txt
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```
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Show only the last line from file **log.txt**
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```bash
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tail -n1 log.txt
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```
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Show live changes from file **log.txt**
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```bash
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tail -f log.txt
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```
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#### More Information:
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* Wikipedia: https://en.wikipedia.org/wiki/Tail_(Unix)
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