### Install rsstail via CLI

Source: https://context7.com/gvalkov/rsstail.py/llms.txt

Instructions for installing rsstail using pip or by downloading the standalone executable.

```bash
pip install rsstail
sudo curl -L -o /usr/local/bin/rsstail https://github.com/gvalkov/rsstail.py/releases/download/v0.7.0/rsstail.pyz
sudo chmod 0755 /usr/local/bin/rsstail
```

--------------------------------

### Customize Output Formatting

Source: https://context7.com/gvalkov/rsstail.py/llms.txt

Use Python-style format strings to define the structure and alignment of the output.

```bash
rsstail --format '%(timestamp)-30s %(title)s by %(author)s\n' https://example.com/feed.rss
rsstail --format '{timestamp:<20} {title:^50} {author:>20}\n' https://example.com/feed.rss
rsstail --format '%(title)s was written by %(author)s on %(pubdate)s\n' https://example.com/feed.rss
```

--------------------------------

### Format Date and Time Output

Source: https://context7.com/gvalkov/rsstail.py/llms.txt

Apply custom strftime patterns to date/time fields or switch to UTC timestamps.

```bash
rsstail --timestamp --time-format '%Y-%m-%d %H:%M' --title https://example.com/feed.rss
rsstail --timestamp --time-format 'Day: %j Month: %b Year: %Y' --title https://example.com/feed.rss
rsstail --utc-timestamp --title https://example.com/feed.rss
```

--------------------------------

### Display Feed Entry Fields

Source: https://context7.com/gvalkov/rsstail.py/llms.txt

Control which metadata fields are displayed in the output, such as timestamps, authors, and descriptions.

```bash
rsstail --timestamp --pubdate --title --author https://example.com/feed.rss
rsstail --title --url https://example.com/feed.rss
rsstail --timestamp --title --author --desc https://example.com/feed.rss
```

--------------------------------

### Monitor RSS and Atom Feeds

Source: https://context7.com/gvalkov/rsstail.py/llms.txt

Commands to monitor single or multiple feeds, including support for authenticated URLs.

```bash
rsstail https://news.ycombinator.com/rss
rsstail https://news.ycombinator.com/rss https://feeds.arstechnica.com/arstechnica/technology https://rss.slashdot.org/Slashdot/slashdot
rsstail https://username:password@private.example.com/feed.rss
```

--------------------------------

### Configure Polling Intervals

Source: https://context7.com/gvalkov/rsstail.py/llms.txt

Adjust how frequently the tool checks for updates using time-based flags or iteration limits.

```bash
rsstail --interval 60 https://example.com/feed.rss
rsstail --interval 5m https://example.com/feed.rss
rsstail --interval 1h https://example.com/feed.rss
rsstail --interval 30s --iterations 10 https://example.com/feed.rss
```

--------------------------------

### Filter Feed Entries

Source: https://context7.com/gvalkov/rsstail.py/llms.txt

Limit the number of initial items or filter entries based on specific publication dates.

```bash
rsstail --initial 5 --title https://example.com/feed.rss
rsstail --newer "2024/01/15 10:00:00" --title https://example.com/feed.rss
rsstail --newer "2024/01/15" --title https://example.com/feed.rss
rsstail --initial 3 --title https://example.com/feed.rss
```

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