mirror of
https://github.com/AlexMacocian/ServerManagementUtils.git
synced 2026-07-15 15:19:58 +00:00
Alexandru-Victor Macocian
62 lines
2.3 KiB
Bash
62 lines
2.3 KiB
Bash
#!/bin/bash
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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. "${SCRIPT_DIR}/../share/logging.sh"
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. "${SCRIPT_DIR}/../share/os-detection.sh"
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LOGFILE=/var/log/disk_usage.log
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OS_TYPE=$(DetectOS)
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# Create log file with proper error handling
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if ! touch "$LOGFILE" 2>/dev/null; then
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LogError "Cannot create log file $LOGFILE"
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exit 1
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fi
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chmod 644 "$LOGFILE" 2>/dev/null
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LogInformation "Starting disk usage monitoring (OS: $OS_TYPE)"
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for i in {1..6}; do
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timestamp=$(GetTimestamp)
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# Use process substitution instead of pipe to avoid subshell issues
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if [[ "$OS_TYPE" == "macos" ]]; then
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# macOS df format: Filesystem 512-blocks Used Available Capacity iused ifree %iused Mounted on
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# Mount points can have spaces, so we need to handle the full line
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while IFS= read -r line; do
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# Skip header line
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if [[ "$line" =~ ^Filesystem ]]; then
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continue
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fi
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# Extract fields using awk (handles multi-word mount points)
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filesystem=$(echo "$line" | awk '{print $1}')
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blocks=$(echo "$line" | awk '{print $2}')
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used=$(echo "$line" | awk '{print $3}')
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# Mount point is everything from column 9 onwards
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mount=$(echo "$line" | awk '{for(i=9;i<=NF;i++) printf "%s%s", $i, (i<NF?" ":""); print ""}')
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# Skip entries with 0 blocks (pseudo filesystems) or filesystem starting with dash
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if [[ -n "$mount" && -n "$used" && -n "$blocks" && "$blocks" != "0" && "$filesystem" != "-" ]]; then
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used_bytes=$((used * 512))
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total_bytes=$((blocks * 512))
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echo "$timestamp $mount $used_bytes $total_bytes" >> "$LOGFILE"
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fi
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done < <(df 2>/dev/null)
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else
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# Linux df with --output flag
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while read -r mount used total; do
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if [[ -n "$mount" && -n "$used" && -n "$total" ]]; then
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echo "$timestamp $mount $used $total" >> "$LOGFILE"
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fi
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done < <(df --output=target,used,size -B1 2>/dev/null | tail -n +2)
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fi
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LogInformation "Disk usage data collected (iteration $i/6)"
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if [ $i -lt 6 ]; then
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sleep 10
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fi
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done
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LogInformation "Disk usage monitoring completed" |