Dev Tools · 1h ago
Fixing SSH commands broken by csh login shells across a codebase
A user reported that auto-detecting WordPress install paths via SSH failed on hosts using csh as the default shell. The root cause was bash-specific syntax like `2>/dev/null` not being recognized by csh. The fix wraps every SSH command in `/bin/sh -c` to ensure POSIX sh compatibility, and a static-analysis test was added to prevent regression.
Meridian48 take
This is a practical debugging story that highlights the hidden complexity of cross-shell compatibility, but it's niche and unlikely to interest a general tech audience.
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When SSH commands hit a csh login shell — wrapping every command in /bin/sh -c across the codebase →
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sshshell-compatibility