https://github.com/tomnomnom/anew

A tool for adding new lines to files, skipping duplicates
https://github.com/tomnomnom/anew

Last synced: 2 months ago
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A tool for adding new lines to files, skipping duplicates

• Host: GitHub
• URL: https://github.com/tomnomnom/anew
• Owner: tomnomnom
• License: mit
• Created: 2019-04-02T11:01:43.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2024-01-12T01:06:36.000Z (5 months ago)
• Last Synced: 2024-01-24T23:45:15.032Z (5 months ago)
• Language: Go
• Size: 9.77 KB
• Stars: 1,136
• Watchers: 22
• Forks: 145
• Open Issues: 5
• Metadata Files:
  • Readme: README.mkd
  • License: LICENSE

Lists

• awesome-password-cracking - anew - Append lines from stdin to a file, but only if they don't already appear in the file. Outputs new lines to stdout too, making it a bit like a tee -a that removes duplicates. (Wordlist tools / Generation/Manipulation)
• command-line-tools - anew - Tool for adding new lines to files, skipping duplicates. (Other)
• cli-apps - anew - Tool for adding new lines to files, skipping duplicates. (<a name="text-processing"></a>Text processing)
• awesome-stars - tomnomnom/anew - A tool for adding new lines to files, skipping duplicates (Go)
• WebHackersWeapons - anew
• project-awesome - tomnomnom/anew - A tool for adding new lines to files, skipping duplicates (Go)
• awesome - anew - A tool for adding new lines to files, skipping duplicates (Go)
• awesome-bugbounty-tools - anew - A tool for adding new lines to files, skipping duplicates (Miscellaneous / Useful)
• awesome-cli-apps - anew - Tool for adding new lines to files, skipping duplicates. (<a name="text-processing"></a>Text processing)

README

        
# anew

Append lines from stdin to a file, but only if they don't already appear in the file.

Outputs new lines to `stdout` too, making it a bit like a `tee -a` that removes duplicates.

## Usage Example

Here, a file called `things.txt` contains a list of numbers. `newthings.txt` contains a second

list of numbers, some of which appear in `things.txt` and some of which do not. `anew` is used

to append the latter to `things.txt`.

```

▶ cat things.txt

Zero

One

Two

▶ cat newthings.txt

One

Two

Three

Four

▶ cat newthings.txt | anew things.txt

Three

Four

▶ cat things.txt

Zero

One

Two

Three

Four

```

Note that the new lines added to `things.txt` are also sent to `stdout`, this allows for them to

be redirected to another file:

```

▶ cat newthings.txt | anew things.txt > added-lines.txt

▶ cat added-lines.txt

Three

Four

```

## Flags

- To view the output in stdout, but not append to the file, use the dry-run option `-d`.

- To append to the file, but not print anything to stdout, use quiet mode `-q`.

## Install

You can either install using go:

```

go install -v github.com/tomnomnom/anew@latest

```

Or download a [binary release](https://github.com/tomnomnom/anew/releases) for your platform.