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# 8  
Old 01-31-2011
That is because your ls output is slightly different to mine (this is quite likely if you are on a different OS to me).

This is why I need the output of ls -ntra on your system so I could adjust the values of S (start) and L (length) for your system.

Again please use the [code] and [/code] tags around your posting of the ls -ntra output so the forum dosn't strip spaces as these are important in determining character positions for the columns.
# 9  
Old 01-31-2011
Hi Chubbler,

I couldn't access my server for some reason it is down I guess. I was trying for a while but I couldn't. But I for the awk script I was using in this fashion
Code:
[awk '{printf "%-12s %6s %-16s %-22s %8s %-4s %3s  \n", $1, $2, $3, $4, $5, $6, $7}']

Let me know if this should be good and can you please run me through your code about the function you declared and about the substrings you wrote. Sorry I'm finding bit tougher to get understand the process.

Thanks a lot for your help in this issue.
Last edited by Scott; 02-02-2011 at 06:59 PM.. Reason: Fixed code tags...
# 10  
Old 02-01-2011
Ok the function max(a,b) returns the maximum of two integers, ie highest of a or b.

FNR==1 {file++} This says if file line number is 1 (first line of the file) then increment file variable. This is used to test what file is being processed 1=/etc/group 2=/etc/passwd 3=ls output.

file==1 {g[$3]=$1;GW=max(GW,length($1));next} This loads the group file into the has array g[] with the group id (field 3) as the key and group name (field 1) as the data. It also uses the max(a,b) function to set GW as maximum length of groupname.

file==2 {p[$3]=$1;PW=max(PW,length($1));next} same as group above except hash array is p[] and PW is maximum login.

Code:
{ split(substr($0,S,L), ID, " ");
  printf "%s %-*s %-*s%s\n", substr($0,1,S-1), PW, p[ID[1]], GW, g[ID[2]],substr($0,S+L) }

This extracts the UID and GID from the ls output by fetching a substring from S to S+L and spliting it up using space seperators into ID[1] and ID[2] variables.
The string from 0-S is printed
The ID[1] (UID) field is looked up in the P[] hash array and the loginID is fetched, this is printed left justified to a width of PW.
The ID[2] (GID) field is looked up in the G[] hash array and the GroupName is fetched, this is printed left justified to a width of GW.
The the rest of the ls string from S+L to the end is printed.
# 11  
Old 02-01-2011
Hi,

This is what I get when I type ls -ntra
Code:
-rwxrwxr-x    1 1750560623 1750560023        110 Jan 27 12:21 list.sh
-rwxr-x---    1 1750560623 1750560023         80 Jan 28 09:25 .desk
drwxrwxr-x 201 0              1750560001        22324 Jan 29 10:12 uni_his

Last edited by Scott; 02-02-2011 at 07:00 PM..
# 12  
Old 02-01-2011
Damn, the length of the UID and GID fields are so long they have pushed out the alignment of all the following columns.

Best idea to fix this is to re-format all the fields up to field 5 and then use the raw ls string from there. The format ls uses for dates varies in width and number of elements depending on when the date is (e.g. older than 1 year or future dates also have YYYY). Not to mention filenames with spaces, etc. So it's best to just substring out the ls output after filesize and print it as-is.

I've added a function toend(str, n) that strips the first n space separated fields from the front of a string. We use toend($0,5) to get the date and filename part of the ls listing.

Code:
ls -nrt /my/path/to/directory | awk 'function max(a,b) {return a>b?a:b}
function toend(str,fld)
{ for(i=0; i<length(str); i++) {
    while(substr(str,i,1) != " " && i<length(str)) i++
    while(substr(str,i,1) == " " && i<length(str)) i++
    if (!--fld) return substr(str,i)
  }
  return ""
}
FNR==1 {file++}
file==1 {g[$3]=$1;GW=max(GW,length($1));next}
file==2 {p[$3]=$1;PW=max(PW,length($1));next}
{ split($0, L, " ")
  printf "%10s %3s %-*s %-*s %11s %s\n", L[1], L[2], PW, p[L[3]], GW, g[L[4]], L[5], toend($0,5)
}' FS=: /etc/group /etc/passwd -

Last edited by Chubler_XL; 02-01-2011 at 07:39 PM.. Reason: spelling
# 13  
Old 02-01-2011
Hi Chubler,

Thanks again. The main issue is I cant put it in my path, I have to put this code in .profile so that any user who types ls should have the longlist group name ( Just the groupname which i have mentioned functional-wireless- consumer) displayed.

And I have to put it as alias in .profile as,
Code:
[alias mike="/path/directory/UID/and the SCRIPT.sh"]

so that if any user who types in mike would have the complete long list groupname displayed.

Please let me know about the workaround on this.

Thanks
Mike
Last edited by Scott; 02-02-2011 at 07:00 PM..
# 14  
Old 02-01-2011
OK take the final script I posted above and replace the 1st line with these two:
Code:
#!/bin/sh
ls -n $@ | awk '

Save this to /path/directory/UID/newls.sh (for example)

Then in the user's .profile put alias mike="/path/directory/UID/newls.sh"

Now you should be able to do stuff like:
Code:
$ mike $HOME
$ mike -d /tmp
$ mike -rt $HOME

Last edited by Chubler_XL; 02-01-2011 at 09:38 PM..
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