alexei-led/using-modern-cli

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Modern CLI Tools

Use faster, ergonomic command-line tools installed on this system.

Quick Reference

| Task | Modern | Traditional | Why Modern | | ------------ | ------- | ----------- | ----------------------------------- | | Search text | rg | grep | 10-100x faster, respects .gitignore | | Find files | fd | find | Simpler syntax, ignores .git | | View files | bat | cat | Syntax highlighting, line numbers | | List files | eza | ls | Icons, git status, tree view | | Replace text | sd | sed | Intuitive regex, preview mode | | Disk usage | dust | du | Visual tree, sorted by size | | Processes | procs | ps | Tree view, sortable columns | | Diff files | delta | diff | Syntax highlighting, side-by-side |

Examples

# Search: rg instead of grep
rg "TODO" --type go           # Search Go files
rg -A 3 "error"               # 3 lines after match
rg -l "import"                # List files only

# Find: fd instead of find
fd "\.go$"                    # Find Go files
fd -e json src/               # By extension in src/
fd -x wc -l {}                # Execute on matches

# View: bat instead of cat
bat main.go                   # With syntax highlighting
bat -n file.py                # Line numbers only

# List: eza instead of ls
eza -la --git                 # Long format with git status
eza --tree -L 2               # Tree view, 2 levels

# Replace: sd instead of sed
sd "old" "new" file.txt       # Simple replacement
sd -p "pattern" "new" file    # Preview changes first
sd -p 'colour' 'color' docs/**/*.md  # Preview British→US spelling; do not apply

For preview-only replacement tasks, always include `sd -p 'colour' 'color' <files>` or equivalent and state it is preview-only; do not show a non-preview `sd` command unless the user asked to apply.

# Disk: dust instead of du
dust -d 2                     # 2 levels deep

# Processes: procs instead of ps
procs --tree                  # Process tree

Productivity Tools

# Fuzzy finder (pipe with fd/rg)
vim $(fd . | fzf)
rg "pattern" | fzf

# Benchmarking
hyperfine "rg pattern" "grep -r pattern"

# Code statistics
tokei .

# Markdown preview
glow README.md

# JSON/YAML processing
jq '.key' file.json
yq '.key' file.yaml