Update 2025-04-13_16:21:50

f2b-ip.sh

@@ -0,0 +1,53 @@
+#!/bin/zsh
+
+# Function to extract the list of jails
+extract_jail_list() {
+    # Run fail2ban-client status and extract the jail list
+    JAIL_LIST=$(fail2ban-client status | awk -F'\t' '/Jail list/ {print $2}' | tr ',' '\n' | tr -d ' ')
+
+    # Check if jail list is empty
+    if [[ -z "$JAIL_LIST" ]]; then
+        echo "No jails found."
+        return 1
+    fi
+
+    echo "$JAIL_LIST"
+    return 0
+}
+
+# Function to extract and print all banned IPs
+extract_and_print_all_banned_ips() {
+    JAIL_LIST=$(extract_jail_list)
+    if [[ $? -ne 0 ]]; then
+        return 1
+    fi
+
+    ALL_BANNED_IPS=""
+
+    for JAIL in ${(f)JAIL_LIST}; do
+        STATUS_OUTPUT=$(fail2ban-client status $JAIL)
+        
+        # Extract the banned IPs
+        BANNED_IP_LIST=$(echo "$STATUS_OUTPUT" | grep -oP '(?<=Banned IP list:\t).*')
+        if [[ -n "$BANNED_IP_LIST" ]]; then
+            ALL_BANNED_IPS+="$BANNED_IP_LIST "
+        fi
+    done
+
+    # Print all found IPs
+    echo "$ALL_BANNED_IPS" | tr ' ' '\n'
+}
+
+# Function to filter the IPs based on the provided argument
+filter_ips() {
+    SEARCH_IP=$1
+    extract_and_print_all_banned_ips | grep "$SEARCH_IP"
+}
+
+# Main execution
+if [[ $# -gt 0 ]]; then
+    filter_ips $1
+else
+    extract_and_print_all_banned_ips
+fi
+