All-or-nothing conditional multi-key set.
Section: Strings
Set many keys only if all are absent
bash
bash
MSETNX a 1 b 2Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Strings
Set only if key does not exist
Common lock-style pattern using NX and EX.
Get a value and update expiration
Read and extend or modify TTL atomically.