Question

如何使用 GNU Parallel 并行化 ping操作，如下所示？

ping -c 5 -S ${AdapterIP[1]} 8.8.8.8
ping -c 5 -S ${AdapterIP[2]} 8.8.8.8
ping -c 5 -S ${AdapterIP[3]} 8.8.8.8

问题：我正在使用 FreeBSD ，因此不允许进行此更改（请注意，ping的主机参数必须是最后一个）关于语法：

ping -c 5 8.8.8.8 -S ${AdapterIP[1]}

在 Linux 系统上，我只是这样做：

parallel ping -c 5 8.8.8.8 -S ::: "${AdapterIP[@]}"

我在FreeBSD上测试了这个方法：

    luis@Balanceador:~$ parallel ping -c 5 -S ::: "${AdapterIP[@]}" 8.8.8.8
usage: ping [-AaDdfnoQqRrv] [-c count] [-G sweepmaxsize] [-g sweepminsize]
            [-h sweepincrsize] [-i wait] [-l preload] [-M mask | time] [-m ttl]
            [-P policy] [-p pattern] [-S src_addr] [-s packetsize] [-t timeout]
            [-W waittime] [-z tos] host
       ping [-AaDdfLnoQqRrv] [-c count] [-I iface] [-i wait] [-l preload]
            [-M mask | time] [-m ttl] [-P policy] [-p pattern] [-S src_addr]
            [-s packetsize] [-T ttl] [-t timeout] [-W waittime]
            [-z tos] mcast-group
usage: ping [-AaDdfnoQqRrv] [-c count] [-G sweepmaxsize] [-g sweepminsize]
            [-h sweepincrsize] [-i wait] [-l preload] [-M mask | time] [-m ttl]
            [-P policy] [-p pattern] [-S src_addr] [-s packetsize] [-t timeout]
            [-W waittime] [-z tos] host
       ping [-AaDdfLnoQqRrv] [-c count] [-I iface] [-i wait] [-l preload]
            [-M mask | time] [-m ttl] [-P policy] [-p pattern] [-S src_addr]
            [-s packetsize] [-T ttl] [-t timeout] [-W waittime]
            [-z tos] mcast-group
usage: ping [-AaDdfnoQqRrv] [-c count] [-G sweepmaxsize] [-g sweepminsize]
            [-h sweepincrsize] [-i wait] [-l preload] [-M mask | time] [-m ttl]
            [-P policy] [-p pattern] [-S src_addr] [-s packetsize] [-t timeout]
            [-W waittime] [-z tos] host
       ping [-AaDdfLnoQqRrv] [-c count] [-I iface] [-i wait] [-l preload]
            [-M mask | time] [-m ttl] [-P policy] [-p pattern] [-S src_addr]
            [-s packetsize] [-T ttl] [-t timeout] [-W waittime]
            [-z tos] mcast-group

......没有运气，可以看出。

这可能是一个愚蠢的问题，但我是GNU Parallel的新手。请帮忙吗？

对于那些感兴趣的人，这是数组的可能值，它将为GNU Parallel提供信息：

luis@Balanceador:~$ echo ${AdapterIP[@]}
192.168.1.254 192.168.2.254 192.168.3.254

Answer 1

这是我发现在不在最后位置时指定参数的方式（--dry-run标志不执行，只是测试）：

luis@Balanceador:~$ parallel --dry-run sudo ping -c 5 -S {1} 8.8.8.8 ::: "${AdapterIP[@]}"
sudo ping -c 5 -S 192.168.1.254 8.8.8.8
sudo ping -c 5 -S 192.168.2.254 8.8.8.8
sudo ping -c 5 -S 192.168.3.254 8.8.8.8

请注意{1} 它可以与多个参数一起使用。 {2}的示例：

luis@Balanceador:~$ parallel --dry-run sudo ping -c 5 -S {1} {2} ::: "${AdapterIP[@]}" ::: 8.8.8.8 8.8.4.4 
sudo ping -c 5 -S 192.168.1.254 8.8.8.8
sudo ping -c 5 -S 192.168.1.254 8.8.4.4
sudo ping -c 5 -S 192.168.2.254 8.8.8.8
sudo ping -c 5 -S 192.168.2.254 8.8.4.4
sudo ping -c 5 -S 192.168.3.254 8.8.8.8
sudo ping -c 5 -S 192.168.3.254 8.8.4.4

GNU Parallel基础：如何提供一些不在最后位置的参数？

1 个答案: