Ravi Sir's Cards › AWS
chmod 755 vs chmod u+x
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
Style
chmod 755
Sets all bits at once.
chmod u+x
Changes only named bits.
Key points
Exact final mode.
Keeps other bits.
Example
chmod 640 db.conf
Use when
Known target mode.
Small tweaks.