bash-cli-framework-1-always-use-set-e

name	bash-cli-framework-1-always-use-set-e
description	Sub-skill of bash-cli-framework: 1. Always Use `set -e` (+4).
version	1.0.0
category	_core
type	reference
scripts_exempt	true

1. Always Use set -e (+4)

1. Always Use set -e

Exit immediately if a command exits with non-zero status:

set -e
# Or for more control:
set -euo pipefail

2. Quote Variables

Always quote variables to prevent word splitting:

# Good
echo "$variable"
"$command" "$arg1" "$arg2"

# Bad
echo $variable
$command $arg1 $arg2

3. Use Meaningful Exit Codes

# Exit codes
EXIT_SUCCESS=0
EXIT_ERROR=1
EXIT_USAGE=2
EXIT_CONFIG=3

4. Provide Feedback

Always tell the user what's happening:

log_info "Starting process..."
# do work
log_info "Process complete (processed $count items)"

5. Support Dry Run

Let users preview changes:

if [[ $DRY_RUN == true ]]; then
    log_info "[DRY RUN] Would execute: $command"
else
    eval "$command"
fi