bash控制任务并发数脚本

文章由LinuxBoy分享于2019-03-24 06:03:04热评（156）

使用bash实现控制任务并发数的功能

#!/bin/bash

CMDS[1]="echo $USER' 01 BEGIN' && sleep 6 && echo $USER' 01 END'"

CMDS[2]="echo $USER' 02 BEGIN' && sleep 3 && echo $USER' 02 END'"

CMDS[3]="echo $USER' 03 BEGIN' && sleep 7 && echo $USER' 03 END'"

CMDS[4]="echo $USER' 04 BEGIN' && sleep 4 && echo $USER' 04 END'"

CMDS[5]="echo $USER' 05 BEGIN' && sleep 2 && echo $USER' 05 END'"

CMDS[6]="echo $USER' 06 BEGIN' && sleep 5 && echo $USER' 06 END'"

N=${#CMDS[@]}

MAX=3

PIDS=''

for I in $(seq $N)

while [ 1 -gt 0 ]

C=0

pids=''

for PID in $PIDS

ps $PID >/dev/null 2>/dev/null

if [ $? -eq 0 ]

then

pids="$pids $PID"

(( C = C + 1 ))

done

PIDS=$pids

[ $C -lt $MAX ] && break

sleep 1

done

#echo $i ${CMDS[$i]}

CMD=${CMDS[$I]}

bash -c "$CMD" &

PIDS="$PIDS $!"

done

wait

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