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例如,如果我写
->@ %echo "Hello"
它在控制台中打印 Hello
->Hello
案例中的 @ 和 % 是什么?
默认情况下,GNU Make 在执行命令之前打印命令(即配方回显),使用 @ 你会像set -x/set +x在 bash 脚本中一样隐藏它......
set -x/set +x
源代码:https ://www.gnu.org/software/make/manual/make.html#Echoing