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Full Discussion: Help with string and substring also I/O
Top Forums Shell Programming and Scripting Help with string and substring also I/O Post 302411753 by ikeQ on Friday 9th of April 2010 10:17:57 AM
Old 04-09-2010
Help with string and substring also I/O
Code:
#!/bin/sh

PRINTF=/usr/bin/printf
PASSWD=/etc/passwd

$PRINTF "Enter a UserID\n"
read USERID

if [ -z "`grep "^$USERID:" $PASSWD`" ]; then
        $PRINTF "$USERID does not exist, please contact IT service\n"
        exit 1
fi

USERHOME=`grep "^$USERID:" $PASSWD | awk -F : '{print $6}'`
USERSHELL=`grep "^$USERID:" $PASSWD | awk -F : '{print $7}'`

$PRINTF "User $USERID has a home directory of $USERHOME\n"
$PRINTF "the default shell for this user is $USERSHELL\n"

Hi all, Ive got some troubles when Im working on my work.
1.how to fix the code to make it successfully deals with USERIDs that are substrings of other userids ?
2.How to trap any error messages generated by programs call by the script using either I/O redirection or pre-validation of program arguments?

This two are part of my assignment, as a new in unix I have done lots of researches but still cannot solve them, can someone help and tell me why(this is important to me, finishing assignment is just beginning)?

Thanks a lot!!!
 

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LEARN ABOUT OPENDARWIN

slapd-passwd

SLAPD-PASSWD(5) 						File Formats Manual						   SLAPD-PASSWD(5)

NAME

       slapd-passwd - /etc/passwd backend to slapd

SYNOPSIS

       /etc/openldap/slapd.conf

DESCRIPTION

       The  PASSWD  backend  to slapd(8) serves up the user account information listed in the system passwd(5) file.  This backend is provided for
       demonstration purposes only.  The DN of each entry is "uid=<username>,<suffix>".  Note that non-base searches scan the  the  entire  passwd
       file, and are best suited for hosts with small passwd files.

CONFIGURATION

       This slapd.conf option applies to the PASSWD backend database.  That is, it must follow a "database passwd" line and come before any subse-
       quent "backend" or "database" lines.  Other database options are described in the slapd.conf(5) manual page.

       file <filename>
	      Specifies an alternate passwd file to use.  The default is /etc/passwd.

FILES

       /etc/openldap/slapd.conf
	      default slapd configuration file

       /etc/passwd
	      user account information

SEE ALSO

       slapd.conf(5), slapd(8), passwd(5).

OpenLDAP 2.1.X							    RELEASEDATE 						   SLAPD-PASSWD(5)
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