# System Utilities and Forensics
# Essential commands for file analysis and system operations

% system, forensics, utilities

# Archive operations with 7zip
7z l <archive_file>

# Extract archive
7z x <archive_file>

# Create archive
7z a <output_archive> <files_to_compress>

# Extract with password
7z x -p<password> <archive_file>

# File manager with Midnight Commander
mc

# Navigate MC with panels
mc <left_dir> <right_dir>

# Convert document formats
catdoc <doc_file>

# Extract text from DOCX
docx2txt <docx_file>

# Convert RTF to text
unrtf --text <rtf_file>

# Advanced text processing with busybox
busybox <command> <args>

# Find files by type
find /data -name "*.<extension>" -type f

# Find files modified in last N days
find /data -mtime -<days> -type f

# Search for text in files
grep -r "<search_term>" /data/

# Case-insensitive search
grep -ri "<search_term>" /data/

# Search with context lines
grep -C <context_lines> "<search_term>" <file>

# Count file types in directory
find /data -name "*.*" | sed 's/.*\.//' | sort | uniq -c | sort -n

# Quick file statistics
wc -l <file>

# Get file size in human readable format
du -sh <file_or_directory>

# Monitor file changes
tail -f <log_file>

# Compare files
diff <file1> <file2>

# Create file hash (multiple algorithms)
md5sum <file>
sha1sum <file>
sha256sum <file>

# Verify file integrity
md5sum -c <checksum_file>

# Network utilities (if needed for analysis)
curl -I <url>

# Download file safely
wget --no-check-certificate <url>

# Show disk usage
df -h

# Show memory usage
free -h

# Process monitoring
ps aux | grep <process_name>

# Environment variables
printenv | sort

# File permissions
ls -la <file>

# Change permissions
chmod <permissions> <file>

$ archive_file: ls *.zip *.7z *.tar.gz *.rar
$ output_archive: echo "output.7z"
$ files_to_compress: echo "file1.txt file2.txt"
$ password: echo "password123"
$ left_dir: echo "/data"
$ right_dir: echo "/tmp"
$ doc_file: ls *.doc
$ docx_file: ls *.docx
$ rtf_file: ls *.rtf
$ command: echo "ls cat grep find"
$ args: echo "-la"
$ extension: echo "pdf txt log exe"
$ days: echo "1 7 30"
$ search_term: echo "malware suspicious error"
$ context_lines: echo "3 5 10"
$ file: ls *
$ file_or_directory: echo "/data"
$ log_file: ls *.log
$ file1: echo "file1.txt"
$ file2: echo "file2.txt"
$ checksum_file: echo "checksums.md5"
$ url: echo "https://example.com"
$ process_name: echo "python nginx apache"
$ permissions: echo "755 644 600"