bar_gauge() {
awk "$@" '
BEGIN {
+ # CLI options
+ width = width ? width : 80
ch_left = ch_left ? ch_left : "["
ch_right = ch_right ? ch_right : "]"
ch_blank = ch_blank ? ch_blank : "-"
ch_used = ch_used ? ch_used : "|"
+ num = num ? 1 : 0
+ pct = pct ? 1 : 0
}
{
cur_scaled = num_scale(cur, max, 1, width)
printf \
- "%s%s%s", \
+ "%s%s%s%s", \
lab ? lab " " : "", \
num ? cur "/" max " " : "", \
+ pct ? sprintf("%3.0f%% ", cur / max * 100) : "", \
ch_left
for (i=1; i<=width; i++) {
c = i <= cur_scaled ? ch_used : ch_blank
'
}
+flat_top_5() {
+ sort -n -k 1 -r \
+ | head -5 \
+ | awk '
+ {
+ cur = $1
+ max = $2
+ name = $3
+ pct = cur / max * 100
+ printf "%s%s:%.2f%%", sep, name, pct
+ sep = " "
+ }
+
+ END {printf "\n"}
+ ' \
+ | column -t
+}
+
motd_batt() {
case "$(uname)" in
'Linux')
}
motd() {
- local -r bar_width='60'
local -r indent_unit=' '
uname -srvmo
df ~ | awk 'NR == 2 {print $3, $3 + $4, "disk"}'
motd_batt
) \
- | bar_gauge -v width="$bar_width" \
+ | bar_gauge -v width=60 -v pct=1 \
| column -t \
| indent "$indent_unit"
echo
- echo 'Loggers'
+ echo 'Process owners (top 5)'
+ ps -eo user \
+ | awk '
+ NR > 1 {
+ count_by_user[$1]++
+ total++
+ }
+
+ END {
+ for (user in count_by_user)
+ print count_by_user[user], total, user
+ }
+ ' \
+ | flat_top_5 \
+ | indent "${indent_unit}"
+}
+
+ssh_invalid_attempts_from() {
+ awk '
+ /: Invalid user/ && $5 ~ /^sshd/ {
+ u=$8
+ addr=$10 == "port" ? $9 : $10
+ max++
+ curr[addr]++
+ }
+
+ END {
+ for (addr in curr)
+ if ((c = curr[addr]) > 1)
+ print c, max, addr
+ }
+ ' \
+ /var/log/auth.log \
+ /var/log/auth.log.1 \
+ | sort -n -k 1 \
+ | bar_gauge -v width="$(stty size | awk '{print $2}')" -v num=1 -v ch_right=' ' -v ch_left=' ' -v ch_blank=' ' \
+ | column -t
+}
+
+loggers() {
awk '
{
split($5, prog, "[")
for (prog in count)
print count[prog], total, prog
}' \
- | sort -n -k 1 -r \
- | bar_gauge -v width=30 -v num=1 -v ch_left=' ' -v ch_right=' ' -v ch_blank=' ' \
- | column -t \
- | indent "${indent_unit}"
+ | bar_gauge -v num=1 -v ch_right=' ' -v ch_left=' ' -v ch_blank=' ' \
+ | column -t
}