Tips & Tricks Advanced

# Vague - may give a generic answer
$ gh copilot suggest "compress files"

# Specific - gives a precise answer
$ gh copilot suggest "compress all .log files older than 7 days in /var/log into a single tar.gz archive on Ubuntu"

# First attempt
$ gh copilot suggest "find duplicate files"
# Suggestion: fdupes -r .

# Revise: "but without installing extra tools, use only built-in commands"
# Revised: find . -type f -exec md5sum {} + | sort | uniq -w32 -dD

# Revise again: "also exclude the .git directory"
# Revised: find . -type f -not -path './.git/*' -exec md5sum {} + | sort | uniq -w32 -dD

# Step 1: Get a suggestion
$ gh copilot suggest "find all symlinks pointing to non-existent targets"
# Suggestion: find . -xtype l

# Step 2: Understand it
$ gh copilot explain "find . -xtype l"
# -xtype l matches symbolic links whose target does not exist (broken symlinks)

# Learning Terraform
$ gh copilot suggest "initialize a terraform project in current directory"
$ gh copilot suggest "show what terraform would change without applying"
$ gh copilot suggest "import an existing AWS S3 bucket into terraform state"

# Learning AWS CLI
$ gh copilot suggest "list all S3 buckets and their sizes"
$ gh copilot suggest "copy a local file to an S3 bucket with public read access"

# Function: explain the last command you ran
explain_last() {
  local last=$(fc -ln -1 | sed 's/^\s*//')
  echo "Explaining: $last"
  gh copilot explain "$last"
}
alias why='explain_last'

# Usage:
# $ find . -name '*.tmp' -mtime +7 -delete
# $ why
# → Explains the find command you just ran

# Browse and explain commands from your history
explain_history() {
  local cmd=$(history | fzf --tac | sed 's/^ *[0-9]* *//')
  if [ -n "$cmd" ]; then
    gh copilot explain "$cmd"
  fi
}
alias eh='explain_history'

# Use tldr for quick reference, Copilot for specific tasks
$ tldr tar                  # Quick overview of tar
$ gh copilot suggest "extract a tar.bz2 file to a specific directory"  # Specific task
$ man tar                  # Full manual for deep understanding

# Start your queries with the task you want to accomplish
$ gh copilot suggest "monitor CPU usage in real time"
$ gh copilot suggest "recursively change file ownership to current user"
$ gh copilot suggest "compare two directories for differences"

# Converting between formats
$ gh copilot suggest "convert a CSV file to JSON using command line"
$ gh copilot suggest "convert all PNG images in a directory to JPEG"
$ gh copilot suggest "convert a YAML file to JSON"

# Include your platform for accurate suggestions
$ gh copilot suggest "check which process is using port 3000 on macOS"
$ gh copilot suggest "install Node.js 20 on Ubuntu 22.04"
$ gh copilot suggest "set an environment variable permanently on Windows PowerShell"