A system administrator wants to define a PATH update and set a default umask for every user when they log in with a Bourne-compatible shell. Which file should be modified to implement these changes across all existing accounts?
/etc/profile
~/.bash_profile
/etc/bash.bashrc
/etc/environment
The chosen file is sourced by all Bourne-compatible (sh, bash, ksh) login shells. It applies system-wide environment settings before any user-specific scripts. The other files are either not processed at login by those shells, apply only to interactive or non-login sessions, or reside in a user’s skeleton directory and affect only new accounts.
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