[ -n "${divnopromena}" ] || divnopromena=

shellcheck -e SC2154 soubor.sh

divnopromena1=1
divnopromena2=1
divnopromena3=1

#!/usr/bin/env bash

declare divnopromena

function neco
{
printf 'nejaka divna promena %s' "${divnopromena}
}

divnopromena1=1
divnopromena2=1
divnopromena3=1

for i in *.sh; do
cat promenne.txt $i | shellcheck >$i.txt
done

#!/usr/bin/env bash

declare divnopromena

function neco
{
printf 'nejaka divna promena %s' "${divnopromena}
}

#!/usr/bin/env bash

function neco
{
printf 'nejaka divna promena %s' "${divnopromena}
}

shellcheck <(cat s1.sh s2.sh s3.sh s4.sh s*zbytek.sh)