# Crack with default settings (auto-detect format)
john hashes.txt

# Use wordlist
john --wordlist=/usr/share/wordlists/rockyou.txt hashes.txt

# Specify hash format
john --format=raw-md5 hashes.txt

# Show cracked passwords
john --show hashes.txt

# List supported formats
john --list=formats

# Check session status
john --status

# Restore interrupted session
john --restore

# Single mode (fastest, uses usernames)
john --single hashes.txt

# Wordlist with rules
john --wordlist=rockyou.txt --rules hashes.txt

# Incremental (all lowercase, up to 8 chars)
john --incremental=Lower hashes.txt

# Mask mode
john --mask='?u?l?l?l?d?d?d?d' hashes.txt

# Password1 pattern
john --mask='?u?l?l?l?l?l?l?l?d' hashes.txt

# 8 digit PIN
john --mask='?d?d?d?d?d?d?d?d' hashes.txt

# Static prefix with variable suffix
john --mask='Company?d?d?d?d' hashes.txt

# List all formats
john --list=formats

# Search for format
john --list=formats | grep -i mysql

# Linux shadow file
unshadow /etc/passwd /etc/shadow > unshadowed.txt

# ZIP file
zip2john protected.zip > zip.hash

# RAR file
rar2john protected.rar > rar.hash

# 7z file
7z2john protected.7z > 7z.hash

# PDF file
pdf2john protected.pdf > pdf.hash

# Office documents
office2john document.docx > office.hash

# SSH private key
ssh2john id_rsa > ssh.hash

# KeePass database
keepass2john database.kdbx > keepass.hash

# GPG/PGP private key
gpg2john private.key > gpg.hash

# Kerberos tickets
kirbi2john ticket.kirbi > kirbi.hash

# Use default rules
john --wordlist=rockyou.txt --rules hashes.txt

# Use specific rule set
john --wordlist=rockyou.txt --rules=best64 hashes.txt

# Jumbo rules (more comprehensive)
john --wordlist=rockyou.txt --rules=jumbo hashes.txt

# List available rules
john --list=rules

# Use all CPU cores
john --fork=8 --wordlist=rockyou.txt hashes.txt

# Name a session
john --session=mycrack --wordlist=rockyou.txt hashes.txt

# Restore session
john --restore=mycrack

# Check status (while running)
john --status=mycrack

# Show cracked passwords
john --show hashes.txt

# Show cracked passwords in format user:password
john --show --format=raw-md5 hashes.txt

# Crack Linux shadow file
unshadow /etc/passwd /etc/shadow > hashes.txt
john hashes.txt

# Crack NTLM hashes
john --format=nt --wordlist=rockyou.txt ntlm_hashes.txt

# Crack MD5 with rules
john --format=raw-md5 --wordlist=rockyou.txt --rules hashes.txt

# Crack encrypted ZIP
zip2john file.zip > zip.hash
john zip.hash

# Crack SSH private key
ssh2john id_rsa > ssh.hash
john ssh.hash

# Crack Kerberoast tickets
john --format=krb5tgs --wordlist=rockyou.txt kerberos.hash