/**
 * Pure string helpers for shaping a command before it is handed to a box.
 *
 * No imports, no I/O — these are shared verbatim between the CLI and any other
 * caller that needs to build the same remote command line.
 */
/**
 * Preserve a single command string; safely join argv when an arg parser split it.
 *
 * A single element is passed through untouched so an already-quoted command
 * survives intact; multiple elements are individually quoted and joined, which
 * is what makes `outposts exec -- ls "my dir"` behave.
 */
export declare function joinCommandParts(commandParts: string[]): string;
/**
 * Prefix that best-effort `cd`s into the box's HQ checkout before running the
 * caller's command. `exec` runs over two transports with two different default
 * working directories — the normal SSM path is dropped to `ec2-user` by hq-pro,
 * while SSH lands in that login user's home. Explicit `--root` commands retain
 * the SSM root context. Without this prefix, `exec -- pwd` printed an unhelpful,
 * transport-dependent directory. The trailing `|| true` keeps the command
 * running from the default directory when no HQ checkout is present, so exec
 * never fails merely because the box has no HQ folder.
 */
export declare const REMOTE_HQ_DIR_PREFIX = "export HOME=\"${HOME:-/root}\"; cd \"$HOME/hq\" 2>/dev/null || cd ~ec2-user/hq 2>/dev/null || true";
/** Wrap `command` so it runs from the box's HQ folder (see {@link REMOTE_HQ_DIR_PREFIX}). */
export declare function withRemoteHqDir(command: string): string;
/** Wrap a remote command in the explicit privileged mode used by SSH fallback. */
export declare function withRemoteRoot(command: string): string;
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