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how output ps aux | grep aUser and keeping Newline ? (lemmy.ml)
submitted 2 years ago by to c/linux@lemmy.ml
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Hi,

by doing a

ps aux | grep UserName

The output do not keep the LF[^1] 😡

I've found some solution online by they involve 3 or more pipe | !

On my side, I've made this

ps -fp $(pgrep -d, -u UserName)

But still I found it not super human readable.

Is their a native way with ps to filter users ? or to grep it but the keep the LF ?

[^1]: linefeed https://en.wikipedia.org/wiki/Linefeed#Representation

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[–] 8 points 2 years ago (1 child)

ps outputs a newline after every entry. What are you trying to accomplish?

Do you have a username that contains a newline character? If so… why?!

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  • [–] 3 points 2 years ago (1 child)

    Security by overcomplication

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  • [–] 2 points 2 years ago

    Kinda hard to encode it in /etc/passwd, which separates entries with newlines and fields of an entry with colons.

    Of course, you can activate some alternative user database in /etc/nsswitch.conf and then you can have your usernames with newlines in them, but at least half of the tools on your system that process usernames will take that personally…

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