Eoyc

    URL Encoders

    URL encoding (also called percent-encoding) converts characters into a format that can be transmitted over the Internet.

    url

    Aliases: url-encode

    Encodes text using application/x-www-form-urlencoded format. Special characters are converted to %XX format where XX is the hexadecimal value.

    Usage

    echo "hello world" | eoyc -e "url"
# Output: hello%20world

    Characters That Are Encoded

    • Space → %20
    • ! → %21
    • # → %23
    • $ → %24
    • & → %26
    • ' → %27
    • ( → %28
    • ) → %29
    • * → %2A
    • + → %2B
    • , → %2C
    • / → %2F
    • : → %3A
    • ; → %3B
    • = → %3D
    • ? → %3F
    • @ → %40
    • [ → %5B
    • ] → %5D

    Examples

    echo "https://example.com/path?name=value" | eoyc -e "url"
# Output: https%3A%2F%2Fexample.com%2Fpath%3Fname%3Dvalue

echo "user@example.com" | eoyc -e "url"
# Output: user%40example.com

echo "hello world & goodbye" | eoyc -e "url"
# Output: hello%20world%20%26%20goodbye

    url-decode

    Decodes URL-encoded strings back to original text.

    Usage

    echo "hello%20world" | eoyc -e "url-decode"
# Output: hello world

    Examples

    echo "https%3A%2F%2Fexample.com" | eoyc -e "url-decode"
# Output: https://example.com

echo "user%40example.com" | eoyc -e "url-decode"
# Output: user@example.com

    Round-Trip Example

    echo "Special chars: !@#$%^&*()" | eoyc -e "url" | eoyc -e "url-decode"
# Output: Special chars: !@#$%^&*()

    Use Cases

    • Preparing data for HTTP GET parameters
    • Encoding email addresses and special characters in URLs
    • Form data submission
    • API query parameters

    Practical Example: URL Processing

    # Encode URLs from a file
cat urls.txt | eoyc -e "url"

# Encode only the URL part in a line
echo "Visit https://www.example.com for info" | eoyc -r "https?://[^\s]+" -e "url"
# Output: Visit https%3A%2F%2Fwww.example.com for info

    Chaining with URL Encoding

    # URL encode then Base64
echo "special@chars.com" | eoyc -e "url>base64"

# URL encode then uppercase
echo "test data" | eoyc -e "url>upcase"
# Output: TEST%20DATA

    Note on Line Feeds

    URL encoding will also encode newlines (\n) as %0A if present in the input.