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uninstall_zsh_setup.sh

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+#!/bin/bash
+set -e # Exit immediately if a command exits with a non-zero status
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BOLD='\033[1m'
+NC='\033[0m' # No Color
+
+info()    { echo -e "${YELLOW}ℹ️  $*${NC}"; }
+success() { echo -e "${GREEN}✅ $*${NC}"; }
+warn()    { echo -e "${YELLOW}⚠️  $*${NC}"; }
+error()   { echo -e "${RED}❌ $*${NC}"; }
+step()    { echo -e "${BOLD}${YELLOW}--- $* ---${NC}"; }
+
+step "Uninstalling Zsh/Powerlevel10k setup and related tools"
+
+# 1. Remove Oh My Zsh directory
+info "Removing Oh My Zsh directory..."
+if [ -d "$HOME/.oh-my-zsh" ]; then
+    rm -rf "$HOME/.oh-my-zsh"
+    success "Oh My Zsh directory removed."
+else
+    warn "Oh My Zsh directory not found."
+fi
+
+# 2. Remove Zsh configuration files
+info "Removing Zsh configuration files..."
+ZSH_CONFIG_FILES=("$HOME/.zshrc" "$HOME/.zshenv" "$HOME/.zprofile" "$HOME/.zlogin" "$HOME/.p10k.zsh")
+for file in "${ZSH_CONFIG_FILES[@]}"; do
+    if [ -f "$file" ]; then
+        rm -f "$file"
+        success "Removed $file"
+    else
+        warn "$file not found."
+    fi
+done
+
+# 3. Remove up.sh maintenance script
+info "Removing up.sh maintenance script..."
+if [ -f "$HOME/Documents/up.sh" ]; then
+    rm -f "$HOME/Documents/up.sh"
+    success "up.sh maintenance script removed."
+else
+    warn "up.sh maintenance script not found."
+fi
+
+# 4. Uninstall colorls (user gem)
+info "Uninstalling colorls Ruby gem..."
+# Ensure GEM_HOME and PATH are set correctly for user gems
+export GEM_HOME="$HOME/.gem"
+export PATH="$PATH:$GEM_HOME/bin"
+if gem list -i colorls >/dev/null 2>&1; then
+    if gem uninstall colorls; then # Removed -x and sudo
+        success "colorls uninstalled."
+    else
+        error "Failed to uninstall colorls."
+    fi
+else
+    warn "colorls gem not found."
+fi
+
+# 5. Uninstall fastfetch
+info "Uninstalling fastfetch..."
+if command -v fastfetch >/dev/null 2>&1; then
+    # Assume it was installed via the curl installer which puts files in /usr/local
+    if sudo rm -f /usr/local/bin/fastfetch && sudo rm -rf /usr/local/share/fastfetch; then
+        success "fastfetch uninstalled."
+    else
+        error "Failed to remove fastfetch binaries. Manual removal may be needed."
+    fi
+else
+    warn "fastfetch not found."
+fi
+
+
+# 6. Optionally restore default shell to bash
+# Check if zsh is the current default shell before attempting to change
+CURRENT_DEFAULT_SHELL=$(getent passwd "$USER" | awk -F: '{print $NF}')
+if [ "$CURRENT_DEFAULT_SHELL" != "/bin/bash" ] && [ -f "/bin/bash" ]; then
+    info "Restoring default shell to /bin/bash..."
+    if chsh -s /bin/bash "$USER"; then # Specify user for chsh
+        success "Default shell changed to /bin/bash."
+        echo -e "${GREEN}Please log out and log in again for shell changes to take effect.${NC}"
+    else
+        error "Failed to change default shell to /bin/bash. You may need to do it manually."
+    fi
+else
+    success "Default shell is already /bin/bash or /bin/bash not found."
+fi
+
+echo -e "${BOLD}${GREEN}✅ Uninstallation complete.${NC}"
+echo -e "${BOLD}${GREEN}Note: Log out and log back in for shell changes to fully apply.${NC}"