I want to execute a command like docker exec "$(docker-compose ps -q web)" start.sh
from golang script using exec.command()
. The problem is getting the command inside $()
to execute.
如何在Golang中将带有$()的命令传递给exec.command()
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1条回答 默认 最新
- doupaimo8288 2016-02-03 21:56关注
The command inside of
$()
is executed and replaced with its output by your shell on the command line (typicallybash
but can besh
or others). exec.Command is running the program directly, so that replacement isn't happening. This means you need to pass that command into bash so it will interpret and execute the command:bash -c "docker exec \"$(docker-compose ps -q web)\" start.sh"
Code Example:
exec.Command("/bin/sh", "-c", "docker exec \"$(docker-compose ps -q web)\" start.sh")
Alternatively, you can run
docker-compose ps -q web
yourself, get its output and do the substitution instead of having bash do it for you.本回答被题主选为最佳回答 , 对您是否有帮助呢?解决 无用评论 打赏 举报
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