man ps 试了，没有任何信息。
l

display BSD long format.
x

Lift the BSD-style "must have a tty" restriction, which is imposed upon the set of all processes when some BSD-style (without "-") options are used or when the ps personality setting is BSD-like. The set of processes selected in this manner is in addition to the set of processes selected by other means. An alternate description is that this option causes ps to list all processes owned by you (same EUID as ps), or to list all processes when used together with the a option.
是这个 吗？
【 在 poocp 的大作中提到: 】
: 在英文搜索引擎里输入man ps也可以搜到，例如必应国际版
: https://linux.die.net/man/1/ps
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