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Adjust agent_start default shell to use /bin/bash, with fallback to /usr/bin/env bash #3667

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Merged
zhming0 merged 1 commit into from
Jan 13, 2026
Merged

Adjust agent_start default shell to use /bin/bash, with fallback to /usr/bin/env bash #3667

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7 changes: 7 additions & 0 deletions clicommand/agent_start.go
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Original file line number Diff line number Diff line change
Expand Up @@ -289,6 +289,13 @@ func DefaultShell() string {
case "netbsd":
return "/usr/pkg/bin/bash -e -c"
default:
// On most Unix-like systems, bash is at /bin/bash and we prefer to use it
// directly to avoid PATH manipulation concerns with /usr/bin/env.
// However, some systems like NixOS or GNU Guix don't have /bin/bash.
// In those cases, fall back to /usr/bin/env bash which will find bash in PATH.
if _, err := os.Stat("/bin/bash"); err == nil {
return "/bin/bash -e -c"
}
return "/usr/bin/env bash -e -c"
}
}
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