Many strings (i.e., the environment and command line)
I guess this should be "e.g.", not "i.e."?
are in the internal format, with subfields terminated by null bytes
('\0'), so you may find that things are more readable if you use od
-c or tr "\000" "\n" to read them. Alternatively, echo `cat <file>`
works well.
Another part of this manpage suggests doing:
strings /proc/PID/environ
which also isn't great: it won't print strings that are very short,
and it will truncate strings containing non-ASCII characters.
* Alexander E. Patrakov:
Unfortunately, echo `cat <file>` does not actually work:
[...]
* Florian Weimer <fw@xxxxxxxxxxxxx>, 2018-10-20, 11:49:
Huh. I'm surprised that it ever worked. This appears to do the job:
xargs -0 -n 1 < /proc/$$/environ
It runs echo under the covers, but I think the echo command line syntax
is such that at most, you will get no output for an "-n" environment
entry.
Yes, this should work for /proc/PID/environ, but /proc/PID/cmdline can
naturally contain "-n", and you wouldn't want it hidden.
--
Jakub Wilk
