最近在工作中经常会遇到任务流控制相关的任务，总结一套shell 任务流控制的脚本模板1
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# 该脚本主要用于pipeline任务的执行。如任务分为3步：
# step 1: xx
# step 2: xx
# step 3: xx
# 用法:
# ./run.sh 1-3 执行1-3步任务
# ./run.sh 1,2,4 执行1,2,4步任务
cmd_seq=$1
function parse_task_seq() {
if [[ "${cmd_seq}" == *"-"* ]]; then
# shellcheck disable=SC2206
pipeline_seq=(${cmd_seq//-/ })
start_step=${pipeline_seq[0]}
end_step=${pipeline_seq[1]}
# shellcheck disable=SC2207
step_seq=($(seq "$start_step" "$end_step"))
else
# shellcheck disable=SC2206
step_seq=(${cmd_seq//,/ })
fi
return "${step_seq[@]}"
}
function pipeline_controller() {
echo "run ${#step_seq[@]} task: ${step_seq[*]}"
for step in "${step_seq[@]}";
do
echo "[$(date +"%y-%m-%d %H:%M:%S")] Task[$step] Starts running..."
had_task_handle=1
if [ "$step" -eq 1 ]
then
echo "1"
elif [ "$step" -eq 2 ]
then
echo "2"
elif [ "$step" -eq 3 ]
then
echo "3"
else
had_task_handle=0
fi
if [ $had_task_handle -eq 1 ]
then
echo "[$(date +"%y-%m-%d %H:%M:%S")] Task[$step] Running done."
else
echo "[$(date +"%y-%m-%d %H:%M:%S")] Task[$step] Has no handler."
fi
done
}
parse_task_seq
pipeline_controller
