Number of home directories in children of /

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I have to count the number of children directories of / that contain one or more home directories.
For instance, if john, emily and rick have their home directories in /home/john , /home/emily and /var/lib, the answer would be 2.



I assume I have to use a pipe with cut and grep, but I do not know exactly how.






grep directory pipe home







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  • I don't understand how /var/lib is different from /home/john or /home/emily in this regard. None of them are direct children of /; two of them contain /home, if that's what you're checking...?
    – Jeff Schaller
    40 mins ago










  • Is the algorithm that "/home" contains two homedirs and /var contains one, so there are two unique top-level directories that contain home directories?
    – Jeff Schaller
    39 mins ago










  • Are the paths to test predetermined or are you reading them from the /etc/passwd file? And would 3 the answer to this list: /home/john , /home/emily , /varlib , /home/sally/Documents/Earth , /var/www ?
    – RubberStamp
    29 mins ago






  • 1




    You only need to find out where the home directory is set which you can get from getent passwd | awk - F : 'print $6'. It is most likely /home for everyone unless it's been set as a different location for some of the users. Assuming that it is, you can use find /home -maxdepth 1 -type d | awk 'END print $NR' and that will give you the total number. You can swap out /home if it's elsewhere.
    – Nasir Riley
    28 mins ago















up vote
0
down vote

favorite












I have to count the number of children directories of / that contain one or more home directories.
For instance, if john, emily and rick have their home directories in /home/john , /home/emily and /var/lib, the answer would be 2.



I assume I have to use a pipe with cut and grep, but I do not know exactly how.






grep directory pipe home







share|improve this question







New contributor




Teodora Argintaru is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.



















  • I don't understand how /var/lib is different from /home/john or /home/emily in this regard. None of them are direct children of /; two of them contain /home, if that's what you're checking...?
    – Jeff Schaller
    40 mins ago










  • Is the algorithm that "/home" contains two homedirs and /var contains one, so there are two unique top-level directories that contain home directories?
    – Jeff Schaller
    39 mins ago










  • Are the paths to test predetermined or are you reading them from the /etc/passwd file? And would 3 the answer to this list: /home/john , /home/emily , /varlib , /home/sally/Documents/Earth , /var/www ?
    – RubberStamp
    29 mins ago






  • 1




    You only need to find out where the home directory is set which you can get from getent passwd | awk - F : 'print $6'. It is most likely /home for everyone unless it's been set as a different location for some of the users. Assuming that it is, you can use find /home -maxdepth 1 -type d | awk 'END print $NR' and that will give you the total number. You can swap out /home if it's elsewhere.
    – Nasir Riley
    28 mins ago













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I have to count the number of children directories of / that contain one or more home directories.
For instance, if john, emily and rick have their home directories in /home/john , /home/emily and /var/lib, the answer would be 2.



I assume I have to use a pipe with cut and grep, but I do not know exactly how.






grep directory pipe home







share|improve this question







New contributor




Teodora Argintaru is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I have to count the number of children directories of / that contain one or more home directories.
For instance, if john, emily and rick have their home directories in /home/john , /home/emily and /var/lib, the answer would be 2.



I assume I have to use a pipe with cut and grep, but I do not know exactly how.






grep directory pipe home




grep directory pipe home






share|improve this question







New contributor




Teodora Argintaru is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




Teodora Argintaru is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






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Teodora Argintaru is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 43 mins ago









Teodora Argintaru

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New contributor




Teodora Argintaru is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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New contributor





Teodora Argintaru is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






Teodora Argintaru is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











  • I don't understand how /var/lib is different from /home/john or /home/emily in this regard. None of them are direct children of /; two of them contain /home, if that's what you're checking...?
    – Jeff Schaller
    40 mins ago










  • Is the algorithm that "/home" contains two homedirs and /var contains one, so there are two unique top-level directories that contain home directories?
    – Jeff Schaller
    39 mins ago










  • Are the paths to test predetermined or are you reading them from the /etc/passwd file? And would 3 the answer to this list: /home/john , /home/emily , /varlib , /home/sally/Documents/Earth , /var/www ?
    – RubberStamp
    29 mins ago






  • 1




    You only need to find out where the home directory is set which you can get from getent passwd | awk - F : 'print $6'. It is most likely /home for everyone unless it's been set as a different location for some of the users. Assuming that it is, you can use find /home -maxdepth 1 -type d | awk 'END print $NR' and that will give you the total number. You can swap out /home if it's elsewhere.
    – Nasir Riley
    28 mins ago

















  • I don't understand how /var/lib is different from /home/john or /home/emily in this regard. None of them are direct children of /; two of them contain /home, if that's what you're checking...?
    – Jeff Schaller
    40 mins ago










  • Is the algorithm that "/home" contains two homedirs and /var contains one, so there are two unique top-level directories that contain home directories?
    – Jeff Schaller
    39 mins ago










  • Are the paths to test predetermined or are you reading them from the /etc/passwd file? And would 3 the answer to this list: /home/john , /home/emily , /varlib , /home/sally/Documents/Earth , /var/www ?
    – RubberStamp
    29 mins ago






  • 1




    You only need to find out where the home directory is set which you can get from getent passwd | awk - F : 'print $6'. It is most likely /home for everyone unless it's been set as a different location for some of the users. Assuming that it is, you can use find /home -maxdepth 1 -type d | awk 'END print $NR' and that will give you the total number. You can swap out /home if it's elsewhere.
    – Nasir Riley
    28 mins ago
















I don't understand how /var/lib is different from /home/john or /home/emily in this regard. None of them are direct children of /; two of them contain /home, if that's what you're checking...?
– Jeff Schaller
40 mins ago




I don't understand how /var/lib is different from /home/john or /home/emily in this regard. None of them are direct children of /; two of them contain /home, if that's what you're checking...?
– Jeff Schaller
40 mins ago












Is the algorithm that "/home" contains two homedirs and /var contains one, so there are two unique top-level directories that contain home directories?
– Jeff Schaller
39 mins ago




Is the algorithm that "/home" contains two homedirs and /var contains one, so there are two unique top-level directories that contain home directories?
– Jeff Schaller
39 mins ago












Are the paths to test predetermined or are you reading them from the /etc/passwd file? And would 3 the answer to this list: /home/john , /home/emily , /varlib , /home/sally/Documents/Earth , /var/www ?
– RubberStamp
29 mins ago




Are the paths to test predetermined or are you reading them from the /etc/passwd file? And would 3 the answer to this list: /home/john , /home/emily , /varlib , /home/sally/Documents/Earth , /var/www ?
– RubberStamp
29 mins ago




1




1




You only need to find out where the home directory is set which you can get from getent passwd | awk - F : 'print $6'. It is most likely /home for everyone unless it's been set as a different location for some of the users. Assuming that it is, you can use find /home -maxdepth 1 -type d | awk 'END print $NR' and that will give you the total number. You can swap out /home if it's elsewhere.
– Nasir Riley
28 mins ago





You only need to find out where the home directory is set which you can get from getent passwd | awk - F : 'print $6'. It is most likely /home for everyone unless it's been set as a different location for some of the users. Assuming that it is, you can use find /home -maxdepth 1 -type d | awk 'END print $NR' and that will give you the total number. You can swap out /home if it's elsewhere.
– Nasir Riley
28 mins ago











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(export LC_ALL=C
getent passwd | cut -d: -f6 | sort -t/ -uk2,2 | grep -c ..)


Counts the number of unique second components of user's home directories.






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    (export LC_ALL=C
    getent passwd | cut -d: -f6 | sort -t/ -uk2,2 | grep -c ..)


    Counts the number of unique second components of user's home directories.






    share|improve this answer
























      up vote
      0
      down vote













      (export LC_ALL=C
      getent passwd | cut -d: -f6 | sort -t/ -uk2,2 | grep -c ..)


      Counts the number of unique second components of user's home directories.






      share|improve this answer






















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        down vote










        up vote
        0
        down vote









        (export LC_ALL=C
        getent passwd | cut -d: -f6 | sort -t/ -uk2,2 | grep -c ..)


        Counts the number of unique second components of user's home directories.






        share|improve this answer












        (export LC_ALL=C
        getent passwd | cut -d: -f6 | sort -t/ -uk2,2 | grep -c ..)


        Counts the number of unique second components of user's home directories.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 27 mins ago









        Stéphane Chazelas

        292k54543883




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