Bash¶

DATE=$(date +%Y%m%d_%H%M%S)
FILE="/backup/backup-$DATE"

for OUTPUT in $(Linux-Or-Unix-Command-Here)
do
    command1 on $OUTPUT
    command2 on $OUTPUT
    commandN
done

export A_VARIBALE
unset A_VARIBALE

ACTOR=${ACTOR:-$GITHUB_ACTOR}

qq=ops:default
echo ${qq#*:}
# default
echo ${qq%:*}
# ops

sh-3.2$ STATE=abc
sh-3.2$ : ${STATE:?"Need to set STATE"}
sh-3.2$ echo $?
0
sh-3.2$ unset STATE
sh-3.2$ : ${STATE:?"Need to set STATE"}
sh: STATE: Need to set STATE
sh-3.2$ echo $?
1

ROLE_PERMISSIONS=(
    compute.disks.get
    compute.disks.create
    compute.disks.createSnapshot
    compute.snapshots.get
    compute.snapshots.create
    compute.snapshots.useReadOnly
    compute.snapshots.delete
    compute.zones.get
)

echo "$(IFS=","; echo "${ROLE_PERMISSIONS[*]}")"

(cd src/ && git checkout $NEW_VERSION_SHA)

echo -e "Default \e[31mRed"
echo -e "\e[31mHello\e[0m World"
echo -e "\e[1;31mHello\e[0m World"