updated motd example scripts

docs/linux/motd/example/00-header

@@ -1,11 +1,15 @@
 #!/bin/bash
 
-echo "Welcome to $(hostname)"
+echo "Welcome to $(hostname -f)"
 echo "$(date)"
 echo "$(lsb_release -sd) $(uname -rm)"
 upgrades=$(apt list -qq --upgradable 2> /dev/null | wc -l)
-if [[ $upgrades == 0 ]]; then
-        printf "All packages are up to date.\n\n"
+if [[ $upgrades -eq 0 ]]; then
+        echo "All packages are up to date."
+elif [[ $upgrades -eq 1 ]]; then
+        echo "$upgrades package can be upgraded. Run 'apt list --upgradable' to see it."
+elif [[ $upgrades -gt 1 ]]; then
+        echo "$upgrades packages can be upgraded. Run 'apt list --upgradable' to see them."
 else
-        printf "$upgrades packages can be upgraded. Run 'apt list --upgradable' to see them.\n\n"
+        echo "Error getting list of upgradeable packages. Check your package system."
 fi

docs/linux/motd/example/20-sysinfo → docs/linux/motd/example/10-sysinfo

@@ -2,17 +2,12 @@
 
 echo "System:"
 echo "  Uptime:   $(uptime -p | cut -d' ' -f2-) (up since $(uptime -s))"
-echo "  Memory:   $(free -h | grep Mem | perl -pe 's/Mem:\s+([\.\w]+)\s+([\.\w]+)\s+([\.\w]+).*/\1 total,
- \2 used, \3 free/')"
-echo "  Swap:     $(free -h | grep Swap | perl -pe 's/Swap:\s+([\.\w]+)\s+([\.\w]+)\s+([\.\w]+).*/\1 tota
-l, \2 used, \3 free/')"
-echo "  Load Avg: $(cat /proc/loadavg | cut -d' ' -f1-3 | perl -pe 's/([\.\d]+) ([\.\d]+) ([\.\d]+)/\1 (a
-vg 1 min), \2 (avg 5 min), \3 (avg 15 min)/')"
+echo "  Memory:   $(free -h | grep Mem | perl -pe 's/Mem:\s+([\.\w]+)\s+([\.\w]+)\s+([\.\w]+).*/\1 total, \2 used, \3 free/')"
+echo "  Swap:     $(free -h | grep Swap | perl -pe 's/Swap:\s+([\.\w]+)\s+([\.\w]+)\s+([\.\w]+).*/\1 total, \2 used, \3 free/')"
+echo "  Load:     $(cat /proc/loadavg | cut -d' ' -f1-3 | perl -pe 's/([\.\d]+) ([\.\d]+) ([\.\d]+)/\1 (avg 1 min), \2 (avg 5 min), \3 (avg 15 min)/')"
 users=$(w | tail -n +3 | cut -d' ' -f1 | sort | uniq -c | wc -l)
 sessions=$(w | tail -n +3 | wc -l)
 echo "  Logins:   $users users with $sessions sessions total"
 ip=$(ip -4 addr show wan0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}')
-name=$(host $ip | cut -d' ' -f5)
-name=${name%?}
-echo "  WAN Addr: $ip (hostname $name)"
+echo "  WAN Addr: $ip"
 echo ""

docs/linux/motd/example/20-containers

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+echo "Containers:"
+podman ps -a --format='  NAMES\tIMAGE\tCREATED\tSTATUS\n  {{.Names}}\t{{.Image}}\t{{.CreatedHuman}}\t{{.Status}}' | sed '3~2d'
+echo ""

docs/linux/motd/example/40-zpool

@@ -1,5 +1,5 @@
 #!/bin/bash
 
-echo "ZFS Pools:"
-echo "  $(zpool status -x)"
+echo "ZFS Pool:"
+zpool status | sed -E '/^\s*$/d' | sed -E 's/(.*)/  \1/'
 echo ""