(zsh.info.gz) Command Execution

 
 8 Command Execution
 *******************
 
 If a command name contains no slashes, the shell attempts to locate it.
 If there exists a shell function by that name, the function is invoked
 as described in  Functions.  If there exists a shell builtin by
 that name, the builtin is invoked.
 
 Otherwise, the shell searches each element of $path for a directory
 containing an executable file by that name.  If the search is
 unsuccessful, the shell prints an error message and returns a nonzero
 exit status.
 
 If execution fails because the file is not in executable format, and the
 file is not a directory, it is assumed to be a shell script.  /bin/sh is
 spawned to execute it.  If the program is a file beginning with '#!',
 the remainder of the first line specifies an interpreter for the
 program.  The shell will execute the specified interpreter on operating
 systems that do not handle this executable format in the kernel.
 
 If no external command is found but a function command_not_found_handler
 exists the shell executes this function with all command line arguments.
 The function should return status zero if it successfully handled the
 command, or non-zero status if it failed.  In the latter case the
 standard handling is applied: 'command not found' is printed to standard
 error and the shell exits with status 127.  Note that the handler is
 executed in a subshell forked to execute an external command, hence
 changes to directories, shell parameters, etc.  have no effect on the
 main shell.
Info Catalog
(zsh.info.gz) Redirection
(zsh.info.gz) Top
(zsh.info.gz) Functions
automatically generated by info2html