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description: In this lab, we explored basic BASH scripting
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# Lab09 - BASH Scripting
## Commands to find Information on BASH Environment
* `bash -version | grep version` - BASH version installed
* `which bash` - where the BASH program resides
* `echo $PATH` - [Path Environment Variable](https://en.wikipedia.org/wiki/PATH\_\(variable\))
* `env` - [Environment Variables](https://www.techrepublic.com/article/linux-101-what-are-environment-variables/)
* `history` - shows previous commands executed
## Check if substring is in string
`if [[ $string =~ "substring" ]]; then`
* Ping sweeper script
* nslookup script
