"bash default value for variable if empty"

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1. bash assign default value to variable if empty ••• /mo •••
2. shell variable default value if empty ••• /mo •••
3. bash default value if empty ••• /mo •••
4. bash set variable if empty ••• /mo •••
5. bash default value for variable ••• /mo •••
6. bash if variable empty ••• /mo •••
7. bash set default value for variable ••• /mo •••
8. bash if not empty variable ••• /mo •••
9. bash script if variable is empty ••• /mo •••
10. bash check if variable empty ••• /mo •••
11. bash check for empty variable ••• /mo •••

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