启动容器进程导致“exec：\”command\”：$PATH 中找不到可执行文件”：未知答案

【问题标题】：starting container process caused "exec: \"command\": executable file not found in $PATH": unknown启动容器进程导致“exec：\”command\”：$PATH 中找不到可执行文件”：未知
【发布时间】：2021-04-23 05:20:50
【问题描述】：

尝试从 docker exec 运行 command 失败，但不是从交互式 shell。

壳

# command which echo
/usr/bin/echo
# which echo
/usr/bin/echo
#

码头工人执行

C:\dev> docker ps -n 1
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
93eb09dcde3b        ubuntu              "/bin/bash"         4 minutes ago       Up 4 minutes                            peaceful_knuth
C:\dev> docker exec peaceful_knuth command which echo
OCI runtime exec failed: exec failed: container_linux.go:349: starting container process caused "exec: \"command\": executable file not found in $PATH": unknown
C:\dev> docker exec peaceful_knuth which echo
/usr/bin/echo
C:\dev>

【问题讨论】：

标签： docker shell sh

【解决方案1】：

$ type command
command is a shell builtin

command 是一个内置的 shell。没有/usr/bin/command。要运行内置的 shell，请先运行 shell。

docker ...... sh -c 'command which echo'

【讨论】：

是的！确切地。 C:\dev> docker exec Peace_knuth type command OCI runtime exec failed: exec failed: container_linux.go:349: 启动容器进程导致 "exec:\"type\": 可执行文件在 $PATH": 未知 C:\ dev> docker exec Peace_knuth sh -c "type command" 命令是一个内置的 shell C:\dev> 编辑：便便，cmets 中没有降价

【解决方案2】：

我在发帖后不到 7 秒就知道了。今天的课程：RTFM。

来自https://docs.docker.com/engine/reference/commandline/exec/ docker exec -ti my_container sh -c "echo a && echo b"

结果

C:\dev> docker exec peaceful_knuth command which echo
OCI runtime exec failed: exec failed: container_linux.go:349: starting container process 
    caused "exec: \"command\": executable file not found in $PATH": unknown
C:\dev> docker exec peaceful_knuth which echo
/usr/bin/echo
C:\dev> docker exec peaceful_knuth sh -c "command which echo"
/usr/bin/echo
C:\dev>

来自https://stackoverflow.com/users/9072753/kamilcuk，为他的回答点赞。

C:\dev> docker exec peaceful_knuth type command
OCI runtime exec failed: exec failed: container_linux.go:349: starting container 
     process caused "exec: \"type\": executable file not found in $PATH": unknown
C:\dev> docker exec peaceful_knuth sh -c "type command"
command is a shell builtin
C:\dev>

【讨论】：