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authorbaude <bbaude@redhat.com>2019-10-24 14:54:57 -0500
committerMatthew Heon <mheon@redhat.com>2019-10-31 16:34:21 -0400
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+% podman-exec(1)
+
+## NAME
+podman\-exec - Execute a command in a running container
+
+## SYNOPSIS
+**podman exec** [*options*] *container* [*command* [*arg* ...]]
+
+**podman container exec** [*options*] *container* [*command* [*arg* ...]]
+
+## DESCRIPTION
+**podman exec** executes a command in a running container.
+
+## OPTIONS
+
+**--detach-keys**=*sequence*
+
+Override the key sequence for detaching a container. Format is a single character `[a-Z]` or `ctrl-<value>` where `<value>` is one of: `a-z`, `@`, `^`, `[`, `,` or `_`.
+
+**--env**, **-e**
+
+You may specify arbitrary environment variables that are available for the
+command to be executed.
+
+**--interactive**, **-i**=*true|false*
+
+When set to true, keep stdin open even if not attached. The default is *false*.
+
+**--latest**, **-l**
+
+Instead of providing the container name or ID, use the last created container. If you use methods other than Podman
+to run containers such as CRI-O, the last started container could be from either of those methods.
+
+The latest option is not supported on the remote client.
+
+**--preserve-fds**=*N*
+
+Pass down to the process N additional file descriptors (in addition to 0, 1, 2). The total FDs will be 3+N.
+
+**--privileged**
+
+Give the process extended Linux capabilities when running the command in container.
+
+**--tty**, **-t**
+
+Allocate a pseudo-TTY.
+
+**--user**, **-u**
+
+Sets the username or UID used and optionally the groupname or GID for the specified command.
+The following examples are all valid:
+--user [user | user:group | uid | uid:gid | user:gid | uid:group ]
+
+**--workdir**, **-w**=*path*
+
+Working directory inside the container
+
+The default working directory for running binaries within a container is the root directory (/).
+The image developer can set a different default with the WORKDIR instruction, which can be overridden
+when creating the container.
+
+## Exit Status
+
+The exit code from `podman exec` gives information about why the command within the container failed to run or why it exited. When `podman exec` exits with a
+non-zero code, the exit codes follow the `chroot` standard, see below:
+
+**_125_** if the error is with Podman **_itself_**
+
+ $ podman exec --foo ctrID /bin/sh; echo $?
+ Error: unknown flag: --foo
+ 125
+
+**_126_** if the **_contained command_** cannot be invoked
+
+ $ podman exec ctrID /etc; echo $?
+ Error: container_linux.go:346: starting container process caused "exec: \"/etc\": permission denied": OCI runtime error
+ 126
+
+**_127_** if the **_contained command_** cannot be found
+
+ $ podman exec ctrID foo; echo $?
+ Error: container_linux.go:346: starting container process caused "exec: \"foo\": executable file not found in $PATH": OCI runtime error
+ 127
+
+**_Exit code_** of **_contained command_** otherwise
+
+ $ podman exec ctrID /bin/sh -c 'exit 3'
+ # 3
+
+## EXAMPLES
+
+$ podman exec -it ctrID ls
+$ podman exec -it -w /tmp myCtr pwd
+$ podman exec --user root ctrID ls
+
+## SEE ALSO
+podman(1), podman-run(1)
+
+## HISTORY
+December 2017, Originally compiled by Brent Baude<bbaude@redhat.com>