Execute a command
Syntax exec [-cl] [-a name] [command [arguments]] Options -c Causes command to be executed with an empty environment. -l Place a dash at the beginning of the zeroth arg passed to command. (This is what the
loginprogram does.) -a The shell passes name as the zeroth argument to command.
If command is supplied, it replaces the shell without creating a new process. If no command is specified, redirections can be used to affect the current shell environment.
If there are no redirection errors, the return status is zero; otherwise the return status is non-zero.
To run an executable file or a shell script from the command line it is often not necessary to use exec at all, just prefix the filename with ./
bash will only search the path not the current working directory for the file.
To execute a program/script in the current working directory use:
./file_name or ./ScriptName
You might be tempted to ‘fix’ this by adding ‘.’ to $PATH but this is widely considered to be bad practice for security reasons.
A better plan is putting all shell scripts into a folder and adding that one folder to your $PATH
This is a BASH shell builtin, to display your local syntax from the bash prompt type: help [e]xec
Related linux commands:
exit – Exit the shell
builtin – Run a shell builtin
crontab – Schedule a command to run at a later time
chroot – Run a command with a different root directory
if – Conditionally perform a command
nohup – Run a command immune to hangups
Run a bash script
.source – Run commands from a file
su – Run a command with substitute user and group id
type – Describe a command
watch – Execute/display a program periodically
Equivalent Windows command: START / CMD – Start a new CMD shell