Add scripts to add/delete user or group

component/cygwin/groupadd

+#! /bin/bash
+# ------------------------------------------------------------------------------
+# Copyright (c) 2010, 2011, 2012 Vifib SARL and Contributors.
+# All Rights Reserved.
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsibility of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# guarantees and support are strongly advised to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+# ------------------------------------------------------------------------------
+#
+# Simulate the command groupadd to add a group on the Windows
+#   
+ACTION=ADD
+GROUP_NAME=$1
+net localgroup "${GROUP_NAME}" /${ACTION}
+if (( $? == 0 )) ; then
+    if [[ $ACTION == "ADD" ]] ; then
+        mkgroup | grep "^${GROUP_NAME}:" >> /etc/group
+    elif [[ $ACTION == "DELETE" ]] ; then
+        sed -i -e "s/^${GROUP_NAME}:.*//g" /etc/group
+    fi
+fi

component/cygwin/useradd

+#! /bin/bash
+# ------------------------------------------------------------------------------
+# Copyright (c) 2010, 2011, 2012 Vifib SARL and Contributors.
+# All Rights Reserved.
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsibility of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# guarantees and support are strongly advised to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+# ------------------------------------------------------------------------------
+#
+# Simulate the command useradd to add a user on the Cygwin
+#   useradd -d path -g init-group -s /bin/false -G group NAME
+#
+#   -g, --gid GROUP 
+#     The group name or number of the user's new initial login group. The group must exist. 
+#
+#   -G, --groups GROUP1[,GROUP2,...[,GROUPN]]] 
+#     A list of supplementary groups which the user is also a member of. 
+#   -s 
+#     Shell used by user
+#
+ACTION=ADD
+
+while getopts "Dd:g:G:p:s:r" opt ; do
+    case $opt in
+        d)
+            USER_HOME=$OPTARG 	   
+	    ;;
+        g|G)
+            USER_GROUP=$OPTARG 
+	    ;;
+        p)
+            USER_PASSWORD=$OPTARG
+	    ;;
+        s)
+            ;;
+	r)
+            ;;	
+        *)
+            echo Error when add user in the Cygwin
+	    exit 1
+	    ;;
+    esac
+done
+
+shift $(($OPTIND - 1))
+USER_NAME=$1
+net user "${USER_NAME}" "${USER_NAME}" /${ACTION}
+if (( $? == 0 )) ; then
+    if [[ $ACTION == "ADD" ]] ; then
+        mkpasswd | grep "^${USER_NAME}:" >> /etc/passwd
+    elif [[ $ACTION == "DELETE" ]] ; then
+        sed -i -e "s/^${USER_NAME}:.*//g" /etc/passwd
+    fi
+    
+fi

component/cygwin/usermod

+#! /bin/bash
+# ------------------------------------------------------------------------------
+# Copyright (c) 2010, 2011, 2012 Vifib SARL and Contributors.
+# All Rights Reserved.
+#
+# WARNING: This program as such is intended to be used by professional
+# programmers who take the whole responsibility of assessing all potential
+# consequences resulting from its eventual inadequacies and bugs
+# End users who are looking for a ready-to-use solution with commercial
+# guarantees and support are strongly advised to contract a Free Software
+# Service Company
+#
+# This program is Free Software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#
+# ------------------------------------------------------------------------------
+#