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lang-bash
echo printf type pwdare builtins; so areset shopt shift read readarray mapfile trap declare/typeset export local let readonly unsetwhich don't affect the parent but may still be useful inside a moderately complicated-c.sh -cbeing used with a complex command line including three programs, a pipe, a&&, and a redirection; I showed an example of it being used with a compound command line including acd, a;, and a program; I showed an example of it being used withexec; and I said it could be used with builtins likeecho,kill,printf,pwdandtype(and alsoexit,ulimit, andumask). What more do you want to know? … (Cont’d)execve()can operate on a script?”, (1) that has nothing to do withbash -c, and (2) what research have you done? Theexecveman page answers this, and a search of this site yields this, this, this, this, this, and this.