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Retry the previous command until it exits successfully

Terminal - Retry the previous command until it exits successfully
until !!; do :; done
2013-05-14 18:08:54
36
Retry the previous command until it exits successfully

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives
!!; while [ $? -ne 0 ]; do !!; done
2013-04-27 20:47:49
User: MagisterQuis
9

Executes the previously-run command constantly until it returns 0 (success). Put a

until !!; do done
2013-04-29 02:30:28
User: tremby
1

Repeat the previously used command (!!) until it exits with a success code (0). To put a delay between attempts you could do something like

until !!; do sleep 5; done

to wait 5 seconds after each attempt.

jkhgkjh; until [[ $? -eq 0 ]]; do YOURCOMMAND; done
2014-04-11 08:19:15
User: moiefu
-2

You want bash to keep running the command until it is successful (until the exit code is 0). Give a dummy command, which sets the exit code to 1 then keep running your command until it exits cleanly

Know a better way?

If you can do better, submit your command here.

What others think

Nice!

Comment by jakwings 186 weeks and 3 days ago

Thanks

Comment by techie 186 weeks and 3 days ago

I often do this with tcp handshake on hosts which are overloaded; A `sleep 1; ` in the loop body helps in cases like this where the last command puts some overhead on a resource

Comment by akhilravidas 186 weeks and 1 day ago

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Comment by xiaozhengm 45 weeks and 5 days ago

Your point of view

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