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63 lines
2.1 KiB
Markdown
63 lines
2.1 KiB
Markdown
# rexec
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**Parallel SSH executor** in Rust with static binary. It can read servers from `~/.ssh/known_hosts`
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or even expand servers from bash expanshion line `cassandra-[1:5].{prod,dev}.example.com`
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[](https://github.com/house-of-vanity/rexec/actions/workflows/release.yml)
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---
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## Usage
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```shell
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Parallel SSH executor in Rust
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Usage: rexec [OPTIONS] --expression <EXPRESSION> --command <COMMAND>
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Options:
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-u, --username <USERNAME> [default: ab]
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-k, --known-hosts Use known_hosts to build servers list
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-e, --expression <EXPRESSION> Expression to build server list
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-c, --command <COMMAND> Command to execute on servers
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--code Show exit code ONLY
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-f, --noconfirm Don't ask for confirmation
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-p, --parallel <PARALLEL> [default: 100]
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-h, --help Print help
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-V, --version Print version
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```
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---
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## Examples
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```shell
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$ rexec -f \
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-e 'cassandra-gce-or-[1:2]' \
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-u ab \
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-c 'uname -r; date'
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[INFO ] Using string expansion to build server list.
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[INFO ] Matched hosts:
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[INFO ] cassandra-gce-or-1.prod.example.com [2.22.123.79]
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[INFO ] cassandra-gce-or-2.prod.example.com [2.22.123.158]
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Continue on following 2 servers? y
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[INFO ] Run command on 2 servers.
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cassandra-gce-or-1.prod.example.com
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Exit code [0] / stdout 45 bytes / stderr 0 bytes
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STDOUT
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║ 5.15.0-1040-gcp
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║ Thu Sep 7 13:44:40 UTC 2023
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cassandra-gce-or-2.prod.example.com
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Exit code [0] / stdout 45 bytes / stderr 0 bytes
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STDOUT
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║ 5.15.0-1040-gcp
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║ Thu Sep 7 13:44:40 UTC 2023
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```
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