bash - Edit: What is it when old unix tools fail sometimes? -


ls , find have not worked @ times. example, days ago:

ls wo_*scr

didn't work. renamed wo_*scr file tmp, , renamed original. ls wo_*scr worked. isn't strange?

today, 

find mydir -iname *scr

didn't show (even escaping). *py or *src did.

lately have installed lot of software apt-get, pip, npm, , git, , scripts trusted origin (like anaconda continuum.io). can typical new software drive system mad? laptop? ubuntu fails , should reinstall it????

about system:

os: i'm using ubuntu in laptop (description: ubuntu 14.04.3 lts; release: 14.04. architecture: x86-64 (64 bit)).

about filesystem, permisions, , all: work home directory. user, , create regular files. of them make executable (to perform simple things changing names of files).

the * expanded shell. should quote like:

find mydirectory -iname '*scr'

or

find mydirectory -iname \*scr

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