Incident Queue Reliability - Bash Programming

A Bash incident report can count visible severities and keep high-severity incidents visible.
Program

Play the script to choose the minimum severity and inspect the queue count report.
                            min_severity
                            min_severity = 2 (default)min_severity = 1min_severity = 3
                        

                            incident_queue_reliability_report.sh
                        
Replay: real traced execution (multi-file project)

                            #!/usr/bin/env bash

min_severity=2
severities="1 3 2 3"
visible=0
high=0
for severity in $severities; do
    if (( severity >= min_severity )); then
        visible=$((visible + 1))
    fi
    if (( severity == 3 )); then
        high=$((high + 1))
    fi
done
echo "min=$min_severity visible=$visible high=$high"
#!/usr/bin/env bash

min_severity=1
severities="1 3 2 3"
visible=0
high=0
for severity in $severities; do
    if (( severity >= min_severity )); then
        visible=$((visible + 1))
    fi
    if (( severity == 3 )); then
        high=$((high + 1))
    fi
done
echo "min=$min_severity visible=$visible high=$high"
#!/usr/bin/env bash

min_severity=3
severities="1 3 2 3"
visible=0
high=0
for severity in $severities; do
    if (( severity >= min_severity )); then
        visible=$((visible + 1))
    fi
    if (( severity == 3 )); then
        high=$((high + 1))
    fi
done
echo "min=$min_severity visible=$visible high=$high"

                        
1min_severity ← 2⋯3min_severity=24severities="1 3 2 3"⋯values this step2min_severity
2severities ← 1 3 2 3⋯3min_severity=24severities="1 3 2 3"5visible=0⋯values this step1 3 2 3severities
3visible ← 0⋯4severities="1 3 2 3"5visible=06high=0⋯values this step0visible
4high ← 0⋯5visible=06high=07for severity in $severities; do⋯values this step0high
5if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step1severity2min_severity
6if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step1severity
7if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step3severity2min_severity
8visible ← 1⋯8if (( severity >= min_severity )); then9    visible=$((visible + 1))10fi⋯values this step0 → 1visible
9if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step3severity
10high ← 1⋯11if (( severity == 3 )); then12    high=$((high + 1))13fi⋯values this step0 → 1high
11if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step2severity2min_severity
12visible ← 2⋯8if (( severity >= min_severity )); then9    visible=$((visible + 1))10fi⋯values this step1 → 2visible
13if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step2severity
14if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step3severity2min_severity
15visible ← 3⋯8if (( severity >= min_severity )); then9    visible=$((visible + 1))10fi⋯values this step2 → 3visible
16if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step3severity
17high ← 2⋯11if (( severity == 3 )); then12    high=$((high + 1))13fi⋯values this step1 → 2high
18echo "min=$min_severity visible=$visible high=$high"⋯14done15echo "min=$min_severity visible=$visible high=$high"outputmin=2 visible=3 high=2values this step2min_severity3visible2high
1min_severity ← 1⋯3min_severity=14severities="1 3 2 3"⋯values this step1min_severity
2severities ← 1 3 2 3⋯3min_severity=14severities="1 3 2 3"5visible=0⋯values this step1 3 2 3severities
3visible ← 0⋯4severities="1 3 2 3"5visible=06high=0⋯values this step0visible
4high ← 0⋯5visible=06high=07for severity in $severities; do⋯values this step0high
5if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step1severity1min_severity
6visible ← 1⋯8if (( severity >= min_severity )); then9    visible=$((visible + 1))10fi⋯values this step0 → 1visible
7if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step1severity
8if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step3severity1min_severity
9visible ← 2⋯8if (( severity >= min_severity )); then9    visible=$((visible + 1))10fi⋯values this step1 → 2visible
10if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step3severity
11high ← 1⋯11if (( severity == 3 )); then12    high=$((high + 1))13fi⋯values this step0 → 1high
12if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step2severity1min_severity
13visible ← 3⋯8if (( severity >= min_severity )); then9    visible=$((visible + 1))10fi⋯values this step2 → 3visible
14if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step2severity
15if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step3severity1min_severity
16visible ← 4⋯8if (( severity >= min_severity )); then9    visible=$((visible + 1))10fi⋯values this step3 → 4visible
17if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step3severity
18high ← 2⋯11if (( severity == 3 )); then12    high=$((high + 1))13fi⋯values this step1 → 2high
19echo "min=$min_severity visible=$visible high=$high"⋯14done15echo "min=$min_severity visible=$visible high=$high"outputmin=1 visible=4 high=2values this step1min_severity4visible2high
1min_severity ← 3⋯3min_severity=34severities="1 3 2 3"⋯values this step3min_severity
2severities ← 1 3 2 3⋯3min_severity=34severities="1 3 2 3"5visible=0⋯values this step1 3 2 3severities
3visible ← 0⋯4severities="1 3 2 3"5visible=06high=0⋯values this step0visible
4high ← 0⋯5visible=06high=07for severity in $severities; do⋯values this step0high
5if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step1severity3min_severity
6if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step1severity
7if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step3severity3min_severity
8visible ← 1⋯8if (( severity >= min_severity )); then9    visible=$((visible + 1))10fi⋯values this step0 → 1visible
9if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step3severity
10high ← 1⋯11if (( severity == 3 )); then12    high=$((high + 1))13fi⋯values this step0 → 1high
11if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step2severity3min_severity
12if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step2severity
13if (( severity >= min_severity )); then⋯7for severity in $severities; do8    if (( severity >= min_severity )); then9        visible=$((visible + 1))⋯values this step3severity3min_severity
14visible ← 2⋯8if (( severity >= min_severity )); then9    visible=$((visible + 1))10fi⋯values this step1 → 2visible
15if (( severity == 3 )); then⋯10fi11if (( severity == 3 )); then12    high=$((high + 1))⋯values this step3severity
16high ← 2⋯11if (( severity == 3 )); then12    high=$((high + 1))13fi⋯values this step1 → 2high
17echo "min=$min_severity visible=$visible high=$high"⋯14done15echo "min=$min_severity visible=$visible high=$high"outputmin=3 visible=2 high=2values this step3min_severity2visible2high
severity threshold `min_severity` controls which incident values count as visible.
loop counters The script uses scalar counters so every update is replayable.
high count Severity 3 incidents stay visible in a separate total.