Mateusz Suski
28 lines
1001 B
Bash
Executable File
28 lines
1001 B
Bash
Executable File
#!/usr/bin/env bash
|
|
set -euo pipefail
|
|
|
|
threshold="${1:-80}"
|
|
|
|
if [[ ! "$threshold" =~ ^[0-9]+$ ]] || (( threshold < 1 || threshold > 100 )); then
|
|
printf 'CRITICAL: invalid threshold "%s"; provide an integer from 1 to 100\n' "$threshold" >&2
|
|
exit 2
|
|
fi
|
|
|
|
status=0
|
|
warning_threshold=$(( threshold > 5 ? threshold - 5 : threshold ))
|
|
|
|
while read -r filesystem _size _used avail use_percent mountpoint; do
|
|
usage="${use_percent%\%}"
|
|
|
|
if (( usage >= threshold )); then
|
|
printf 'CRITICAL: %s mounted on %s is %s used; threshold is %s%% (%s free)\n' "$filesystem" "$mountpoint" "$use_percent" "$threshold" "$avail"
|
|
status=1
|
|
elif (( usage >= warning_threshold )); then
|
|
printf 'WARNING: %s mounted on %s is %s used; threshold is %s%%\n' "$filesystem" "$mountpoint" "$use_percent" "$threshold"
|
|
else
|
|
printf 'OK: %s mounted on %s is %s used\n' "$filesystem" "$mountpoint" "$use_percent"
|
|
fi
|
|
done < <(df -P -x tmpfs -x devtmpfs | awk 'NR > 1 {print $1, $2, $3, $4, $5, $6}')
|
|
|
|
exit "$status"
|