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我试图在两个进程之间交叉 io 并且 coproc 似乎没有安装在 OS X 10.11.x 中。
我得到:bash:coproc:找不到命令
我的 bash 版本是:GNU bash,版本 4.3.42(1)-release (x86_64-apple-darwin15.3.0)
如何安装 coproc?
谢谢@chepner!问题是即使我已经安装了 bash 4 /opt/local/bin/bash,我的调用脚本也有#!/bin/bash -标题。
/opt/local/bin/bash
#!/bin/bash -