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Make user history cleaning optional in trace eraser

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User bash history cleaning is now optional with a prompt, since most users only work as root.

Changes:
• Added user count detection
• Prompts: "Clean user bash histories too? (y/n) [n]"
• Default is "no" (skip user histories)
• If no users exist, automatically skips
• Only cleans root history by default (faster, covers 99% of use cases)

This makes the script faster and more sensible for typical usage where only root is used to run the toolkit.
This commit is contained in:
cschantz
2025-11-10 22:20:11 -05:00
parent b3773ee37c
commit 762b5ba958
1 changed files with 37 additions and 19 deletions
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tools/erase-toolkit-traces.sh
+37 -19
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@@ -73,29 +73,47 @@ if [ -f ~/.bash_history ]; then
history -w history -w
fi fi
# Clean bash history for all users # Clean bash history for all users (optional - skip if only root is used)
echo "→ Checking user histories..." echo "→ Checking user histories..."
user_count=0
for user_home in /home/*; do for user_home in /home/*; do
if [ -f "$user_home/.bash_history" ]; then [ -d "$user_home" ] && user_count=$((user_count + 1))
username=$(basename "$user_home")
echo " → Cleaning history for $username..."
# Remove last 50 lines from user history
total_lines=$(wc -l < "$user_home/.bash_history")
if [ "$total_lines" -gt 50 ]; then
lines_to_keep=$((total_lines - 50))
head -n "$lines_to_keep" "$user_home/.bash_history" > "$user_home/.bash_history.tmp"
mv "$user_home/.bash_history.tmp" "$user_home/.bash_history"
chown "$username:$username" "$user_home/.bash_history" 2>/dev/null
echo " ✓ Cleaned (removed last 50 entries)"
else
> "$user_home/.bash_history"
chown "$username:$username" "$user_home/.bash_history" 2>/dev/null
echo " ✓ Cleared (file had < 50 entries)"
fi
fi
done done
if [ "$user_count" -eq 0 ]; then
echo " ✓ No user accounts found (skipped)"
else
echo " Found $user_count user account(s)"
echo ""
read -p " Clean user bash histories too? (y/n) [n]: " clean_users
if [ "$clean_users" = "y" ] || [ "$clean_users" = "Y" ]; then
for user_home in /home/*; do
if [ -f "$user_home/.bash_history" ]; then
username=$(basename "$user_home")
echo " → Cleaning history for $username..."
# Remove last 50 lines from user history
total_lines=$(wc -l < "$user_home/.bash_history")
if [ "$total_lines" -gt 50 ]; then
lines_to_keep=$((total_lines - 50))
head -n "$lines_to_keep" "$user_home/.bash_history" > "$user_home/.bash_history.tmp"
mv "$user_home/.bash_history.tmp" "$user_home/.bash_history"
chown "$username:$username" "$user_home/.bash_history" 2>/dev/null
echo " ✓ Cleaned (removed last 50 entries)"
else
> "$user_home/.bash_history"
chown "$username:$username" "$user_home/.bash_history" 2>/dev/null
echo " ✓ Cleared (file had < 50 entries)"
fi
fi
done
else
echo " ✓ Skipped user histories (only root cleaned)"
fi
fi
echo ""
# Clean system logs (pattern-based for logs, not history) # Clean system logs (pattern-based for logs, not history)
echo "→ Cleaning system logs..." echo "→ Cleaning system logs..."
if [ -f /var/log/messages ]; then if [ -f /var/log/messages ]; then