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[Bash Version] Prints the version of bash that is locally installed #Shell
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| # bash_version.sh | |
| ( bash --version | | |
| grep --only-matching --max-count=1 "([0-9]*\.){2}[0-9]*" | | |
| head -n 1 #`head --lines=` isn't portable, so `-n` is used | |
| ) 2>/dev/null || | |
| exit 1 #failure | |
| exit 0 #success |
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