Touch - changing date and time Post: 302931038

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Operating Systems Linux Red Hat Touch - changing date and time Post 302931038 by Corona688 on Friday 9th of January 2015 04:37:30 PM

01-09-2015

Registered User

Quote:

Originally Posted by brjohnsmith

Note: everyone that is allowed to run the application, belongs to the same group.

user1 - group app1
user2 - group app1

Okay. That helps a lot. Just be sure to take a good look at what's inside the 'app1' group. You don't want people to be able to touch root's timestamps, etc. You may find a few users you you should specifically prevent them from running as.

Code:

# sudoers file

%app1 ALL=(%app1) NOPASSWD:  /path/to/update-time.sh

This would allow anyone in the app1 group to run /path/to/update-time.sh as any other user in the app1 group. Still no need to risk giving anyone root.

So:

Code:

#!/bin/sh

if [ "$#" -ne 2 ]
then
        echo "Usage:  $0 timestamp filename" >&2
        exit 1
fi

if ! [ -e "$2" ]
then
        echo "File $1 does not exist" >&2
        exit 1
fi

# Can also use 'stat' to get this on some systems
NEWUSER="$(ls -l "$1" | awk '{ print $3 }' )"

# If we are not the owner of the file, restart this script from the beginning
# as $NEWUSER via sudo.
[ "$USER" = "$NEWUSER" ] || exec sudo -u "$NEWUSER" "$0" "$@"

# Touch the file with an arbitrary timestamp.
touch -c -t "$1" "$2"

Last edited by Corona688; 01-09-2015 at 05:54 PM..

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csp_helper(1)							  USER COMMANDS 						     csp_helper(1)

  NAME
      csp_helper - A collection of caspar helper scripts

  SYNOPSIS
      csp_install dir (directory) file (file)

      csp_mkdircp dir (directory) file (file)

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      csp_sucp h ([user@]host) dir (directory) file (file)

  DESCRIPTION
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  install DESCRIPTION
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  install EXAMPLES
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	csp_INSTALL_MODE=ugo=r 
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       csp_INSTALL_MODE=u=rwx,go= csp_install /usr/local/sbin mkpasswd

  install ENVIRONMENT
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      csp_scp_keep_mode  uses  ssh to copy a file to a remote host, keeping its file permission mode. The trick used is a combination of mktemp(1)
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  scp_keep_mode EXAMPLE
	chmod g+w rc
	csp_scp_keep_mode root@gandalf /etc/uruk rc

  scp_keep_mode ENVIRONMENT
      csp_scp_keep_mode honors csp_SSH ("ssh" by default).

  sucp DESCRIPTION
      csp_sucp calls cat(1) from within sudo(1) from within ssh(1). This allows one to copy files to accounts on hosts one can only reach by call-
      ing sudo on the ssh-reachable remote host.

      Typically, one wants to install a root-owned file, but one does not want to allow access to the root-account directly  from  ssh.  Typically
      sudo is used as an extra line of defense.

  sucp EXAMPLES
      Some examples:

	csp_sucp rms@bilbo /etc fstab

	csp_sucp monty-python commit/ trailer.txt

  sucp BUGS
      If  NOPASSWD  is	not  set in the sudoers(5) file, and one's timestamp is expired, csp_sucp will forward the sudo password prompt. The given
      password will be echoed on the console!

  AUTHOR
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  SEE ALSO
      caspar(7) The caspar homepage is at http://mdcc.cx/caspar/ .

  csp_helper 20120514						      14 mai 2012						       csp_helper(1)