46 lines
1.1 KiB
Markdown
46 lines
1.1 KiB
Markdown
---
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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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Commonly 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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- `-F` - Same as `-f` but if the file/log is rolled it will continue with the new file/log.
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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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### Examples
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#### View the last several 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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#### View the last 15 lines from file **log.txt**
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```bash
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tail -n 15 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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* Run `man tail` for more information on the tail command as well as a complete list of options.
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* [Wikipedia](https://en.wikipedia.org/wiki/Tail_(Unix))
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