shell_env.sh

#!/bin/bash

# Create .bashrc or .zshrc
cat << 'EOF' > ~/.bashrc
# Custom Aliases
alias ll='ls -al'
alias ls='ls -l'
alias where='echo $PWD'
alias c=clear
alias s=source
alias e=exit
alias ..='cd ..'
alias ...='cd ../..'
alias rp=realpath
alias h=history
alias me=whoami
alias pd=passwd
alias l=less
alias install1='sudo apt update && sudo apt install'
alias install2='sudo apt update && sudo apt-get install'
alias install3='sudo apt update && sudo snap install'
alias ua=useradd
alias um=usermod
alias gi='git init'
alias gs='git status'
alias ga='git commit'
alias gcm='git commit -m'
alias gco='git checkout'
alias fig='figlet'

# Custom Functions

ca() { cd "$1" && ls -al; }

mkcd() {
    mkdir -p "$1" && cd "$1"
}

# Function to prompt before deleting a file or directory
del() {
  # Check if argument is passed (file or directory path)
  if [ -z "$1" ]; then
    echo "Error: No file or directory specified."
    return 1
  fi

  local target="$1"
  
  # Check if the target is a file or directory
  if [ -f "$target" ]; then
    # It's a file
    read -p "Are you sure you want to delete the file '$target'? (y/n) " confirm
    if [[ "$confirm" =~ ^[Yy]$ ]]; then
      rm "$target" && echo "File '$target' deleted."
    else
      echo "File '$target' not deleted."
    fi
  elif [ -d "$target" ]; then
    # It's a directory
    read -p "Are you sure you want to delete the directory '$target' and its contents? (y/n) " confirm
    if [[ "$confirm" =~ ^[Yy]$ ]]; then
      rm -r "$target" && echo "Directory '$target' deleted."
    else
      echo "Directory '$target' not deleted."
    fi
  else
    echo "Error: '$target' is not a valid file or directory."
    return 1
  fi
}

# Function to find files and directories in the current directory
finddir() {
  local type="$1"  # The type argument (file, dir, all)
  local name="$2"  # The pattern to match (optional)

  # Default to search in the current directory if no directory is specified
  local search_dir="."

  # If no type is specified, default to search for both files and directories
  if [ -z "$type" ]; then
    type="all"
  fi

  # Case for searching all files and directories
  if [ "$type" == "all" ]; then
    if [ -z "$name" ]; then
      # If no name is given, list everything in the current directory
      ls -alF "$search_dir"
    else
      # Search for files or directories matching the name pattern
      find "$search_dir" -name "$name"
    fi

  # Case for searching only directories
  elif [ "$type" == "dir" ]; then
    if [ -z "$name" ]; then
      # List all directories in the current directory
      find "$search_dir" -type d
    else
      # Search for directories matching the name pattern
      find "$search_dir" -type d -name "$name"
    fi

  # Case for searching only files
  elif [ "$type" == "file" ]; then
    if [ -z "$name" ]; then
      # List all files in the current directory
      find "$search_dir" -type f
    else
      # Search for files matching the name pattern
      find "$search_dir" -type f -name "$name"
    fi

  else
    echo "Usage: finddir [file|dir|all] [name_pattern]"
    echo "  file  - Search for files"
    echo "  dir   - Search for directories"
    echo "  all   - Search for both files and directories"
  fi
}

function extract() {
    if [ -f "$1" ]; then
        case "$1" in
            *.tar.bz2)   tar xvjf "$1" ;;
            *.tar.gz)    tar xvzf "$1" ;;
            *.bz2)       bunzip2 "$1" ;;
            *.rar)       unrar x "$1" ;;
            *.gz)        gunzip "$1" ;;
            *.tar)       tar xvf "$1" ;;
            *.zip)       unzip "$1" ;;
            *)           echo "Unsupported file type";;
        esac
    else
        echo "'$1' is not a valid file."
    fi
}

# Personalized PS1 Prompt
PS1='[e[36m]u@h [e[33m]w [e[32m]$(git branch 2>/dev/null | grep "^*" | colrm 1 2)[e[0m] $ '

# Autocomplete and History Enhancements
if [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
fi

bind '"e[B": history-search-forward'
bind '"e[A": history-search-backward'

# Enable case-insensitive globbing
shopt -s nocaseglob

EOF

# Create .bash_profile
cat << 'EOF' > ~/.bash_profile
# Source the .bashrc file
if [ -f ~/.bashrc ]; then
    . ~/.bashrc
fi

# Display a welcome message
echo "Welcome back, $(whoami)! Today is $(date +'%A, %B %d, %Y')."

EOF

# Create .zshrc (if using Zsh)
cat << 'EOF' > ~/.zshrc
# Custom Aliases
alias ll='ls -al'
alias ls='ls -l'
alias where='echo $PWD'
alias c=clear
alias s=source
alias e=exit
alias ..='cd ..'
alias ...='cd ../..'
alias rp=realpath
alias h=history
alias me=whoami
alias pd=passwd
alias l=less
alias install1='sudo apt update && sudo apt install'
alias install2='sudo apt update && sudo apt-get install'
alias install3='sudo apt update && sudo snap install'
alias ua=useradd
alias um=usermod
alias gi='git init'
alias gs='git status'
alias ga='git commit'
alias gcm='git commit -m'
alias gco='git checkout'
alias fig='figlet'

# Custom Functions

ca() { cd "$1" && ls -al; }

mkcd() {
    mkdir -p "$1" && cd "$1"
}

# Function to prompt before deleting a file or directory
del() {
  # Check if argument is passed (file or directory path)
  if [ -z "$1" ]; then
    echo "Error: No file or directory specified."
    return 1
  fi

  local target="$1"
  
  # Check if the target is a file or directory
  if [ -f "$target" ]; then
    # It's a file
    read -p "Are you sure you want to delete the file '$target'? (y/n) " confirm
    if [[ "$confirm" =~ ^[Yy]$ ]]; then
      rm "$target" && echo "File '$target' deleted."
    else
      echo "File '$target' not deleted."
    fi
  elif [ -d "$target" ]; then
    # It's a directory
    read -p "Are you sure you want to delete the directory '$target' and its contents? (y/n) " confirm
    if [[ "$confirm" =~ ^[Yy]$ ]]; then
      rm -r "$target" && echo "Directory '$target' deleted."
    else
      echo "Directory '$target' not deleted."
    fi
  else
    echo "Error: '$target' is not a valid file or directory."
    return 1
  fi
}

# Function to find files and directories in the current directory
finddir() {
  local type="$1"  # The type argument (file, dir, all)
  local name="$2"  # The pattern to match (optional)

  # Default to search in the current directory if no directory is specified
  local search_dir="."

  # If no type is specified, default to search for both files and directories
  if [ -z "$type" ]; then
    type="all"
  fi

  # Case for searching all files and directories
  if [ "$type" == "all" ]; then
    if [ -z "$name" ]; then
      # If no name is given, list everything in the current directory
      ls -alF "$search_dir"
    else
      # Search for files or directories matching the name pattern
      find "$search_dir" -name "$name"
    fi

  # Case for searching only directories
  elif [ "$type" == "dir" ]; then
    if [ -z "$name" ]; then
      # List all directories in the current directory
      find "$search_dir" -type d
    else
      # Search for directories matching the name pattern
      find "$search_dir" -type d -name "$name"
    fi

  # Case for searching only files
  elif [ "$type" == "file" ]; then
    if [ -z "$name" ]; then
      # List all files in the current directory
      find "$search_dir" -type f
    else
      # Search for files matching the name pattern
      find "$search_dir" -type f -name "$name"
    fi

  else
    echo "Usage: finddir [file|dir|all] [name_pattern]"
    echo "  file  - Search for files"
    echo "  dir   - Search for directories"
    echo "  all   - Search for both files and directories"
  fi
}

function extract() {
    if [ -f "$1" ]; then
        case "$1" in
            *.tar.bz2)   tar xvjf "$1" ;;
            *.tar.gz)    tar xvzf "$1" ;;
            *.bz2)       bunzip2 "$1" ;;
            *.rar)       unrar x "$1" ;;
            *.gz)        gunzip "$1" ;;
            *.tar)       tar xvf "$1" ;;
            *.zip)       unzip "$1" ;;
            *)           echo "Unsupported file type";;
        esac
    else
        echo "'$1' is not a valid file."
    fi
}

# Personalized PS1 Prompt
PROMPT='%F{cyan}%n@%m %F{yellow}%~ %F{green}$(git branch 2>/dev/null | grep "^*" | colrm 1 2)%f %# '

# Autocomplete and History Enhancements
if [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
fi

bind '"e[B": history-search-forward'
bind '"e[A": history-search-backward'

# Enable case-insensitive globbing
setopt nocaseglob

EOF

echo "Shell environment setup completed. Please restart your terminal or run 'source ~/.bashrc' or 'source ~/.zshrc'."