[augeas-devel] Changing arguments that already exist

[Ed]

Thanks in advance for the help!!

I'm working with /files/etc/pam.d/system-auth. I've been trying to change an
argument that's already there. Either by removing the one that augeas finds
and setting a new one with argument[last()+1], or setting it without
removing. I can't figure out how to do wither one. Here's the example:

My system-auth has the line:
password    requisite     pam_cracklib.so try_first_pass retry=3
maxrepeats=3   minlen=10       ucredit=-1      dcredit=-1      ocredit=-1
 lcredit=-0

When I try to change the lcredit argument by removing and adding to end I
get a type error on the rm:

rm
system-auth/*[module='pam_cracklib.so'][type='password']/argument=regexp('lcredit=.*')
  # Doesn't work
set system-auth/*[module='pam_cracklib.so']/argument[last()+1]
lcredit=-$lowercase"]

Or setting it inline with:

set
/files/etc/pam.d/system-auth/*[module='pam_cracklib.so']/argument=~regexp('lcredit=-.*')
lcredit=-2  # Doesn't work either

How would I change an argument by referencing the argument content (without
referencing the argument number directly)?

~Ed
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