e16e634dcc
Changed the usage section to be more consistent with the rest of the directory, also added a link to Wikipedia for further details and further consistency.
38 lines
1.1 KiB
Markdown
38 lines
1.1 KiB
Markdown
---
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title: Bash touch
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---
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# Bash command: touch
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Creates empty file if filename does not exist or modifies timestamps of existing files to current time.
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This command can create multiple empty files in one line of code.
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## Usage
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```
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touch [options] filename
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```
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Commonly used options:
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- `-t` change timestamp to specific date ((YYYYMMDDHHMM.SS)) instead of current time.
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- `-r` use timestamp from first file to second file.
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- `-a` In case you want to only change the access time, use the -a command line option.
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- `-m` Similarly, if the requirement is to only change the modification time, use the -m command line option.
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- `-h` Is useful if you only want to change the symbolic link, instead of the referenced file.
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## Examples
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```bash
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touch -t YYYYMMDDHHMM.SS filename
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```
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```bash
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touch -r file1 file2
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```
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```bash
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touch -am file3
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```
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## Additional Resources
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- [Wikipedia](https://en.wikipedia.org/wiki/Touch_(Unix))
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- [Man pages](http://man7.org/linux/man-pages/man1/touch.1.html)
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- [Examples and options to use with the touch command](https://ss64.com/bash/touch.html)
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