Introduce literal strings in PS command

Question

I usually lauch this command:

ps -p 1 --format "command %c running from %t"

But last version in Debian 12, I can't:

ps -p 1 --format "command %c running from %t"
error: improper AIX field descriptor

Uso:
 ps [opciones]

 Try 'ps --ayuda <simple|lista|salida|hilos|varios|todo>'
  or 'ps --ayuda <s|l|o|t|m|a>'
 for additional help text.

For more details see ps(1).

How can I use literal in --format option of ps, without the use of more complex command line (whitout ps --format ... | awk '{ print ...})

Answer 1

How can I use literal in --format option of ps, without the use of more complex command line (whitout ps --format ... | awk '{ print ...})

You can't. The only format string permitted is one where the %x format specifiers are separated by zero or more spaces. You could submit a bug report to find out if this is intentional given earlier versions of ps permitted your freetext format string.

Credit: https://lists.debian.org/debian-user/2023/02/msg00537.html