Simple fetching tool for UNIX like systems, that pipes to cowsay.

cowsay

#!/bin/sh

# Cowfetch - Simple fetching tool for UNIX like systems, that pipes to cowsay.

# Check if cowsay is installed.
if [ "$(command -v cowsay | wc -l)" = 0 ]; then
    printf "cowsay isn't installed.\n"
    exit 1
fi

# Get the current username.
get_username () {
    printf "%s" "$USER"
}

# Get the release's name.
get_release_name () {
    cat /etc/*-release | awk \
        'BEGIN { FS = "=" } NR == 1 { gsub("\"", ""); print $2 }'
}

# Get the running kernel version.
get_kernel_version () {
    uname -r
}

# Get the system's uptime.
get_memory_usage () {
    free -h | awk 'NR == 2 { printf("%s/%s\n", $3, $2) }'
}

# Get the running shell's name.
get_running_shell () {
    printf "%s" "$SHELL" | awk 'BEGIN { FS = "/" } { printf $3 }'
}

main () {
    # Fetch all the information.
    username=$(get_username)
    release_name=$(get_release_name)
    kernel_version=$(get_kernel_version)
    memory=$(get_memory_usage)
    running_shell=$(get_running_shell)

    # Pretty print the fetched information.
    printf "User:\t%s\nOS:\t%s\nKernel:\t%s\nMemory:\t%s\nShell:\t%s" \
        "$username" "$release_name" "$kernel_version" "$memory" \
        "$running_shell"
}

main | cowsay -n

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