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Deleting Multiple Keys in Redis

In my redis database, I’m trying to delete a series of keys that start with:

EPOCH_vgsOwnedVehs_

I have tried the following:

redis-cli -h 127.0.0.1 -p myport -a mypassword --scan --pattern EPOCH_vgsOwnedVehs_* | xargs redis-cli unlink

and

redis-cli -h 127.0.0.1 -p myport -a mypassword --scan --pattern EPOCH_vgsOwnedVehs_* | xargs redis-cli -h 127.0.0.1 -p myport -a mypassword unlink

But, I get the following error message:

'xargs' is not recognized as an internal or external command, operable program or batch file.

Could anyone help as to why xargs won’t work in this case? I see that same syntax above being mentioned quite a few times here and seems to work for others…

EDIT: I forgot to mention that when I run the first half of the line before the pipe, it does return all the keys that match the criteria.

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2

Answers


  1. 0

    The following should do the work; (added an example print-out)

    redis-cli -h 127.0.0.1 -p 6379 -a mypass –scan –pattern EPOCH_vgsOwnedVehs_* | xargs redis-cli -h 127.0.0.1 -p 6379 -a mypass unlink

    127.0.0.1:6379> config set requirepass mypass
OK
127.0.0.1:6379> auth mypass
OK
127.0.0.1:6379> set EPOCH_vgsOwnedVehs_a a
OK
127.0.0.1:6379> set EPOCH_vgsOwnedVehs_b a
OK
127.0.0.1:6379> set EPOCH_vgsOwnedVehs_c a
OK
127.0.0.1:6379> set EPOCH_vgsOwnedVehs_d a
OK
127.0.0.1:6379>

redis-cli -h 127.0.0.1 -p 6379 -a mypass --scan --pattern EPOCH_vgsOwnedVehs_* | xargs redis-cli -h 127.0.0.1 -p 6379 -a mypass unlink
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
(integer) 4


127.0.0.1:6379> auth mypass
OK
127.0.0.1:6379> exists EPOCH_vgsOwnedVehs_a
(integer) 0
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  2. 0

    xargs is a common Linux utility and the message you are seeing indicates you are using Windows. You have a couple of choices here to get this working – you can find a Windows alternative of xargs, use Cygwin, use Powershell, etc.

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