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parssh: Parallel SSH orchestration in a Bash session.
=====================================================
Instructions
------------
- Source pars.sh to your Bash session:
```
. pars.sh
```
- Run *parssh* function for usage information:
```
parssh --help
```
- Run simple command on listed servers from list:
```
parssh "md5sum /bin/bash" < SERVERLIST
```
- Export FUNCTIONS and VARIABLES from local Bash session to remote hosts from
SERVERLIST and execute:
```
parssh "$(declare -f FUNCTIONS; declare -p VARIABLES); FUNCTIONS" < SERVERLIST
```
- Export FUNCTIONS and VARIABLES from local Bash session to remote hosts from
SERVERLIST and execute with a concurrency of 35, saving and displaying output
along with the commands and meta-data as a header in the 'PROJECT_NAME.out'
and 'PROJECT_NAME.err' files:
```
parssh -35 -C -t PROJECT_NAME \
"$(declare -f FUNCTIONS; declare -p VARIABLES); FUNCTIONS" < SERVERLIST
```
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