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Full Discussion: If with sed loop question
Top Forums Shell Programming and Scripting If with sed loop question Post 302662801 by Jazmania on Wednesday 27th of June 2012 06:26:49 AM
Old 06-27-2012
I'll admit it aint the prettiest piece of code ever but it half works and I'm under pressure to get this script finished for the business..

I've 4 files I'm working with here..

${grouplist}_temp2 Contains a list of the groups in the report. E.g.
OCC
root
admin
printgroup

$list_C contains a list of all the secondary user ID's belonging to the Groups in the ${grouplist}_temp2 E.g.
x111222333
x111333444
x224422333

$pwdfile_new contains user ID's and the names associated with them

${grouplist}_2 is a file which contains the group names and all the xid's asociated with them. E.g.
OCC=x1332223, x4324523, w2324233, x12451213
admin=x2136423, x1332223, w2324233, x4444444, x1212323
printgroup=x12451213


I need to replace the group ID's in the ${grouplist}_2 file with their matched username E.g. x111222333=Joe Bloggs
But I also need it to return Name_Not_Found if the xid is not contained in that $pwdfile_new file..
E.g. x224422333=Name_Not_Found


Code:
       for y in $(cat $list_C)
        do
                to_replace9=$(grep -w ${y} ${pwdfile_new} | cut -f2 -d"=")
                matchgrpusr=$(grep -wc ${y} ${pwdfile_new})
                if [[ "${matchgrpusr}" != "1" ]]
                then    
                    sed "s/$y/${y}=Name_Not_Found/g" ${grouplist}_2 > $file_B
                    mv $file_B ${grouplist}_2
                else    
                #### Making sure to replace the second instance of $y if the xid is the same name as the user
                matchfirstinst=$(grep -wc $y ${grouplist}_temp2)
                if [[ "${matchfirstinst}" == "1" ]]
                        then
                        sed "s/$y/${y}=${to_replace9} /2" ${grouplist}_2 > $file_B
                        mv $file_B ${grouplist}_2
                else
                sed "s/$y/${y}=${to_replace9} /g" ${grouplist}_2 > $file_B
                mv $file_B ${grouplist}_2
                fi
                fi
        done

If someone can suggest a better way that would be much appreciated...



EDIT****

Ok I've changed it around a bit but when it finds a match it should be echoing out $useridvar $to_replace9 but it seems to be echoing out echo $useridvar $matchgrpusr instead... Been looking at this so long now nothings making sense

Code:
while read useridvar
do
#to_replace9=$(grep -w ${useridvar} ${pwdfile_new} | cut -f2 -d"=")
matchgrpusr=$(grep -wc ${useridvar} ${pwdfile_new})
    if [[  "{$matchgrpusr}" == 1 ]]
                then    
                to_replace9=$(grep -w ${useridvar} ${pwdfile_new} | cut -f2 -d"=")
                echo $useridvar $to_replace9
                sed "s/${useridvar}/${useridvar}=${to_replace9} /g" ${grouplist}_2 > $file_B
                mv $file_B ${grouplist}_2

                else
                echo $useridvar $matchgrpusr
                sed "s/$useridvar/${useridvar}=Name_Not_Found/g" ${grouplist}_2 > $file_B
                mv $file_B ${grouplist}_2
     fi
done < $list_C

Last edited by Jazmania; 06-27-2012 at 08:32 AM..
 

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LEARN ABOUT OPENDARWIN

gshadow

GSHADOW(5)                                                 File Formats and Conversions                                                 GSHADOW(5)

NAME

       gshadow - shadowed group file

DESCRIPTION

       /etc/gshadow contains the shadowed information for group accounts.

       This file must not be readable by regular users if password security is to be maintained.

       Each line of this file contains the following colon-separated fields:

       group name
           It must be a valid group name, which exist on the system.

       encrypted password
           Refer to crypt(3) for details on how this string is interpreted.

           If the password field contains some string that is not a valid result of crypt(3), for instance ! or *, users will not be able to use a
           unix password to access the group (but group members do not need the password).

           The password is used when a user who is not a member of the group wants to gain the permissions of this group (see newgrp(1)).

           This field may be empty, in which case only the group members can gain the group permissions.

           A password field which starts with an exclamation mark means that the password is locked. The remaining characters on the line
           represent the password field before the password was locked.

           This password supersedes any password specified in /etc/group.

       administrators
           It must be a comma-separated list of user names.

           Administrators can change the password or the members of the group.

           Administrators also have the same permissions as the members (see below).

       members
           It must be a comma-separated list of user names.

           Members can access the group without being prompted for a password.

           You should use the same list of users as in /etc/group.

FILES

       /etc/group
           Group account information.

       /etc/gshadow
           Secure group account information.

SEE ALSO

       gpasswd(5), group(5), grpck(8), grpconv(8), newgrp(1).

shadow-utils 4.5                                                    01/25/2018                                                          GSHADOW(5)
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