A Dynamic Collection of Shell Scripts with Educational Purpose

Author: felipefacundes

scripts/md2odt.sh

@@ -99,11 +99,11 @@ main() {
         echo -e "${GREEN}Copying clipboard content to $temp_file${NC}"
 
         # Tries different clipboard methods
-        if command -v xclip &> /dev/null; then
+        if command -v xclip &> /dev/null && [[ "${XDG_SESSION_TYPE,,}" != "wayland" ]]; then
             xclip -o -selection clipboard > "$temp_file"
-        elif command -v xsel &> /dev/null; then
+        elif command -v xsel &> /dev/null && [[ "${XDG_SESSION_TYPE,,}" != "wayland" ]]; then
             xsel --clipboard --output > "$temp_file"
-        elif command -v wl-copy &> /dev/null; then
+        elif command -v wl-copy &> /dev/null && [[ "${XDG_SESSION_TYPE,,}" == "wayland" ]]; then
             wl-paste > "$temp_file"
         else
             echo -e "${RED}Error: No clipboard utility found (xclip, xsel or wl-clipboard)${NC}"

scripts/smartresize

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# Verifica se o ImageMagick está instalado
+if ! command -v magick &> /dev/null; then
+    echo "O ImageMagick (magick) não está instalado. Por favor, instale-o primeiro."
+    exit 1
+fi
+
+# Verifica os argumentos
+if [ "$#" -ne 3 ] || [ "$1" != "-s" ]; then
+    echo "Uso: $0 -s <largura_referência> <largura_desejada>"
+    echo "Exemplo: $0 -s 560 270"
+    exit 1
+fi
+
+ref_width=$2
+target_width=$3
+
+echo "Redimensionando imagens com largura > $ref_width para $target_width pixels (mantendo proporção)..."
+
+# Encontra e processa imagens recursivamente
+find . -type f \( -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.png" -o -iname "*.webp" \) | while read -r img; do
+    width=$(magick identify -format "%w" "$img")
+    
+    if [ "$width" -gt "$ref_width" ]; then
+        echo "Redimensionando $img (original: ${width}px)..."
+        magick "$img" -resize "${target_width}x" "$img"
+    else
+        echo "Ignorando $img (${width}px <= ${ref_width}px)"
+    fi
+done
+
+echo "Processo concluído!"

scripts/text_it

@@ -0,0 +1,101 @@
+#!/usr/bin/env bash
+# License: GPLv3
+# Credits: Felipe Facundes
+
+: <<'DOCUMENTATION'
+This script (text_it) saves clipboard content to a file, supporting Termux, macOS, X11, and Wayland. 
+It detects the OS and uses the appropriate clipboard tool ('termux-clipboard-get', 'pbpaste', 'xclip', 'wl-paste'). 
+If no text is found or tools are missing, it shows an error. The output file is specified as an argument. 
+Works cross-platform with clear success/error messages.
+DOCUMENTATION
+
+# Colors for messages (optional)
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+NC='\033[0m' # No Color
+
+# Creates a temporary file
+temp_file=$(mktemp)
+
+# Definitive file
+file="$*"
+
+show_documentation() {
+    awk '
+    BEGIN { inside_block = 0 }
+
+    # Check the beginning of the DOCUMENTATION block
+    /: <<'\''DOCUMENTATION'\''/ { inside_block = 1; next }
+
+    # Check the end of the DOCUMENTATION block
+    inside_block && $0 == "DOCUMENTATION" { inside_block = 0; exit }
+
+    # Print lines within the DOCUMENTATION block
+    inside_block { print }
+    ' "$0"
+}
+
+help() {
+	show_documentation
+
+    echo -e "\nUsage: ${0##*/} <filename>"
+}
+
+if [[ "$1" == -h ]] || [[ "$1" == --help ]]; then
+	help
+
+# Check if a file name was provided
+elif [ -z "$1" ]; then
+    echo -e "${RED}Error: Please provide a filename as argument${NC}\n"
+	help
+    exit 1
+fi
+
+# Try different clipboard methods
+if [[ -n "$TERMUX_VERSION" ]]; then
+    # Termux (Android)
+    if command -v termux-clipboard-get &> /dev/null; then
+        termux-clipboard-get > "$temp_file"
+    else
+        echo -e "${RED}Error: termux-clipboard-get not found (Termux clipboard utility)${NC}"
+        exit 1
+    fi
+elif [[ "$(uname)" == "Darwin" ]]; then
+    # macOS
+    if command -v pbpaste &> /dev/null; then
+        pbpaste > "$temp_file"
+    else
+        echo -e "${RED}Error: pbpaste not found (macOS clipboard utility)${NC}"
+        exit 1
+    fi
+elif [[ "${XDG_SESSION_TYPE,,}" == "wayland" ]]; then
+    # Wayland
+    if command -v wl-paste &> /dev/null; then
+        wl-paste > "$temp_file"
+    else
+        echo -e "${RED}Error: wl-paste not found (wl-clipboard package required)${NC}"
+        exit 1
+    fi
+else
+    # X11
+    if command -v xclip &> /dev/null; then
+        xclip -o -selection clipboard > "$temp_file"
+    elif command -v xsel &> /dev/null; then
+        xsel --clipboard --output > "$temp_file"
+    else
+        echo -e "${RED}Error: No clipboard utility found (xclip or xsel required)${NC}"
+        exit 1
+    fi
+fi
+
+# Check if the clipboard had content
+if [ ! -s "$temp_file" ]; then
+    echo -e "${RED}Error: Clipboard is empty or contains no text${NC}"
+    rm "$temp_file"
+    exit 1
+fi
+
+# Moves the temporary file to the final destination
+mv "$temp_file" "$file"
+
+echo -e "${GREEN}Success: Clipboard content saved to '$file'${NC}"

scripts/utils/optipng_recursive

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+script="${0##*/}"
+lock_file="/tmp/${script}.lock"
+touch "$lock_file"
+
+_check() {
+	if [[ -f "$lock_file" ]]; then
+		optipng -o7 -nc "$1"
+	fi
+}
+
+export -f _check
+export lock_file
+
+find . -type f -iname "*.png" -exec bash -c '_check "{}"' \;
+
+rm "$lock_file"