inital commit

main.sh

@@ -0,0 +1,72 @@
+#!/bin/which bash
+
+# Detect OS type
+os_type=$(uname)
+
+# System info adjustments for macOS, BSD, and Linux
+if [[ "$os_type" == "Darwin" ]]; then
+    # macOS memory stats
+    mem_total=$(sysctl -n hw.memsize | awk '{print $1/1024/1024/1024 "Gi"}')
+    mem_used=$(vm_stat | awk '/Pages active/ {active=$3} /Pages wired down/ {wired=$3} END {print (active + wired) * 4096 / 1024 / 1024 / 1024 "Gi"}')
+    mem_avail=$(vm_stat | awk '/Pages free/ {free=$3} /Pages speculative/ {spec=$3} END {print (free + spec) * 4096 / 1024 / 1024 / 1024 "Gi"}')
+    cpu_utilization=$(top -l 1 -n 0 | grep "CPU usage" | awk '{print $3}' | sed 's/%//')
+    disk_usage=$(df -h | grep '/dev/' | awk '{printf "\"%s\":\"%s\",", $NF, $(NF-1)}')
+
+elif [[ "$os_type" == "FreeBSD" || "$os_type" == "OpenBSD" ]]; then
+    # BSD memory stats
+    mem_total=$(sysctl -n hw.physmem | awk '{print $1/1024/1024/1024 "Gi"}')
+    mem_used=$(sysctl -n vm.stats.vm.v_active_count | awk '{print $1*4096 / 1024 / 1024 / 1024 "Gi"}')
+    mem_avail=$(sysctl -n vm.stats.vm.v_inactive_count | awk '{print $1*4096 / 1024 / 1024 / 1024 "Gi"}')
+    cpu_utilization=$(top -d1 | grep "CPU:" | awk '{print $2}' | sed 's/%//')
+    disk_usage=$(df -h | grep '/dev/' | awk '{printf "\"%s\":\"%s\",", $NF, $(NF-1)}')
+
+elif [[ "$os_type" == "Linux" ]]; then
+    # Linux memory stats
+    mem_avail=$(free -h | awk '/^Mem:/{print $7}')
+    mem_total=$(free -h | awk '/^Mem:/{print $2}')
+    mem_used=$(free -h | awk '/^Mem:/{print $3}')
+    cpu_utilization=$(awk '/^cpu /{print 100*($2+$4)/($2+$4+$5)}' /proc/stat)
+    disk_usage=$(df -h | grep '^/' | awk '{printf "\"%s\":\"%s\",", $6, $5}')
+fi
+
+# Process Count
+process_count=$(ps -e | wc -l)
+
+# Logged-in Users
+logged_in_users=$(users | tr ' ' '\n' | sort | uniq | awk '{printf "\"%s\",", $0}')
+logged_in_users_fixed=$(echo "[$logged_in_users]" | sed 's/,$/]/')
+
+# Top 5 memory-consuming processes
+top_processes=""
+IFS=$'\n' # Set IFS to handle newlines in Bash
+for proc in $(ps -eo pid,user,%cpu,%mem,comm --sort=-%mem | head -n 6 | tail -n +2); do
+    pid=$(echo "$proc" | awk '{print $1}')
+    user=$(echo "$proc" | awk '{print $2}')
+    cpu=$(echo "$proc" | awk '{print $3}')
+    mem=$(echo "$proc" | awk '{print $4}')
+    cmd=$(echo "$proc" | awk '{print $5}') # Only the base command without arguments
+
+    # Add process info to the JSON array
+    top_processes+="{\"PID\":\"$pid\",\"User\":\"$user\",\"%CPU\":\"$cpu\",\"%MEM\":\"$mem\",\"Command\":\"$cmd\"},"
+done
+top_processes="[${top_processes%,}]" # Trim trailing comma and wrap in brackets
+
+# Use parameter expansion instead of sed for DiskUsage
+disk_usage_fixed="{${disk_usage%,}}"
+
+# Process stats
+total_threads=$(ps -eLf | wc -l)
+
+# Generate JSON output
+echo "{
+  \"hostname\":\"$(hostname)\",
+  \"time\":\"$(date +%s)\",
+  \"mem\":{\"avail\":\"$mem_avail\", \"total\":\"$mem_total\", \"used\":\"$mem_used\"},
+  \"cpuUtilization\":\"$cpu_utilization\",
+  \"DiskUsage\":$disk_usage_fixed,
+  \"Process Count\":\"$process_count\",
+  \"Total Threads\":\"$total_threads\",
+  \"Logged-in Users\":$logged_in_users_fixed,
+  \"Top 5 Memory Consuming Processes\":$top_processes
+}" | sed 's/,]/]/g' | sed 's/,\s*}/}/g'
+