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Full Discussion: How to run several bash commands put in bash command line?
Top Forums Shell Programming and Scripting How to run several bash commands put in bash command line? Post 303011707 by drysdalk on Monday 22nd of January 2018 07:00:21 PM
Old 01-22-2018
Hi,

If you're using Bash, then the simplest way to do this is just to separate them with semi-colon (;) characters. Commands separated by semi-colons will be executed one after the other, regardless of the success or failure of the preceding command.

Example:

Code:
$ echo "This is the output of the first command." ; /bin/ls -F / ; echo "This is the output of the third command."
This is the output of the first command.
bin/   dev/  home/                 lib/    lost+found/  mnt/  proc/  run/   srv/  tmp/  var/
boot/  etc/  installCDE.15787.log  lib64/  media/       opt/  root/  sbin/  sys/  usr/
This is the output of the third command.
$

There are a few other ways to do this. If you only want the next command in the chain to be executed if the previous command was a success, then you can use a logical 'and' operator, represented by two ampersand (&) symbols:

Code:
$ echo "First command." && /bin/true && echo "The two previous commands returned 0, so we get to run our third."
First command.
The two previous commands returned 0, so we get to run our third.
$

And lastly, if you only want a command chain to continue if the previous command fails rather than succeeds, you can use the logical 'or' operator, represnted by a double pipe (|) symbol:

Code:
$ echo "First command". || /bin/true || echo "This time, we won't see the third command."
First command.
$

Hope this helps.
 

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LEARN ABOUT SUSE

xdg-su

XDG-SU(1)																 XDG-SU(1)

NAME

       xdg-su - run a GUI program as root after prompting for the root password

SYNOPSIS

       xdg-su [-u user] -c command

       xdg-su {--help --manual --version}

DESCRIPTION

       xdg-su provides a graphical dialog that prompts the user for a password to run command as user or as root if no user was specified.

       xdg-su is for use inside a desktop session only.

       xdg-su discards any stdout and stderr output from command.

OPTIONS

       -u user
	      run command as user. The default is to run as root.

       --help Show command synopsis.

       --manual
	      Show this manualpage.

       --version
	      Show the xdg-utils version information.

EXIT CODES

       An exit code of 0 indicates success while a non-zero exit code indicates failure. The following failure codes can be returned:

       1      Error in command line syntax.

       2      One of the files passed on the command line did not exist.

       3      A required tool could not be found.

       4      The action failed.

SEE ALSO

       su(1)

EXAMPLES

       xdg-su -u root -c "/opt/shinythings/bin/install-GUI --install fast"

       Runs the /opt/shinythings/bin/install-GUI command with root permissions.

AUTHOR

       Kevin Krammer, Jeremy White.
       <kevin.krammer@gmx.at>
       <jwhite@codeweavers.com>

This is release 0.5 of the xdg-su Manual			    07/31/2006								 XDG-SU(1)
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