- #!/bin/bash 
- url='example.com:7000' 
-   
- IFS=: read host port _ <<< "$url:8080" 
-   
- # check host and port values 
- declare -p host port 
- echo '------' 
-   
- url='example.com' 
-   
- IFS=: read host port _ <<< "$url:8080" 
-   
- # check host and port values 
- declare -p host port 
-   
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