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228228Viewing a file with Bash also satisfies the read-before-edit requirement when the command is `cat`, `nl`, `bat`, `batcat`, `head`, `tail`, `sed -n 'X,Yp'`, `grep`, `egrep`, `fgrep`, or `rg` on a single file with no pipes or redirects. Piped output and other Bash commands don't count toward the read-before-edit check.
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230This affects edit eligibility only, not permissions. [Read and Edit deny rules](/docs/en/permissions#tool-specific-permission-rules) also apply to file commands Claude Code recognizes in Bash, such as `cat`, `head`, `tail`, `sed`, and `grep`, but not to arbitrary subprocesses that read or write files indirectly, like a Python or Node script that opens files itself. The set of commands recognized for deny rules is not the same as the read-before-edit list above: for example, `egrep` and `fgrep` count for read-before-edit but are not checked against Read deny rules. For OS-level enforcement that covers every process, [enable the sandbox](/docs/en/sandboxing).
230Viewing a file with Bash affects edit eligibility only, not permissions. See [Read and Edit permission rules](/docs/en/permissions#read-and-edit) for which Bash commands your `Read` and `Edit` deny rules cover.
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232232## EndConversation tool behavior
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