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6 changes: 6 additions & 0 deletions cloud.md
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Cloud characteristics:

Multitenancy
Elasticity
Scalability
Portability
27 changes: 26 additions & 1 deletion linux/linux.md
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Expand Up @@ -262,8 +262,33 @@ https://static-course-assets.s3.amazonaws.com/CyberEss/ru/course/files/5.1.2.4%2
head -c 24 /dev/urandom | base64
```

### Environment Variables


Setting an Environment Variable
```
export JAVA_HOME=/opt/openjdk11
```
Unsetting an Environment Variable
```
unset JAVA_HOME
```
Listing All Set Environment Variables
```
set
printenv
env
export
export -p
cat /proc/$pid/environ
```
Persisting Environment Variables for a User
```
vi ~/.bash_profile
```
Setting Permanent Global Environment Variables for All Users
```
sudo vi /etc/profile.d/http_proxy.sh
```



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