Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Help regarding shell script

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Help regarding shell script
# 1  
Old 01-31-2011
Help regarding shell script
Hello,

When listing the file systems (using ls -ltr) , if the group names are longer the group name is getting truncated.

Can someone help with the script which would display the truncated group name?

I appreciate if someone could help in this regard.
# 2  
Old 01-31-2011
How about using ls -n and looking the gid up in /etc/group yourself.
# 3  
Old 01-31-2011
Hi Chubler,

Thanks for your reply. But for making all the users to view their complete group names in the listing it would be tougher to do that everytime. So having a script in the root .profile would let the user to have the complete group name displayed.

Thanks
Mike
# 4  
Old 01-31-2011
The format of ls -n output varies from system to system, can you supply a example output as the awk script will need to use substrings to extract the gid and uid but keep the other column spacing the same.

---------- Post updated at 11:54 AM ---------- Previous update was at 11:34 AM ----------

For my system UID + GID starts at char 16 and is 13 chars long below function is based on this, change S and L below for your ls output.

The script calculates the maximum UID and GID lengths in the system and adjusts column widths based on this. So beware if you add a new group or user to the system with a longer ID the column sizes in this output will change.

Code:
ls -nrt /my/path/to/directory | awk -vS=16 -vL=13 '
function max(a,b) {return a>b?a:b}
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(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)
}' FS=: /etc/group /etc/passwd -

# 5  
Old 01-31-2011
If I enter ls -ltra I will get the output of the groupname in this truncated format
Code:
              uid              Group name                           
-rw-r--r--  1 Mike     Functional-Wi......   20480 Sep 19  2007 first.tar

but i would like to see the output in the following format
Code:
              uid                    Group name                           
-rw-r--r--  1 Mike Functional-Wireless-Consumers    20480 Sep 19  2007 first.tar

Last edited by Scott; 02-02-2011 at 06:58 PM.. Reason: Code tags
# 6  
Old 01-31-2011
Yes, that's what the above script does, it relies on the output of ls -n (Long format with numeric userID and groupID) and reads passwd and group files to expand the full names.

Can you supply the output of ls -ntra within [code] and [/code] tags?
Last edited by Chubler_XL; 01-31-2011 at 11:19 PM..
# 7  
Old 01-31-2011
Thanks a lot for the reply. When I run your script I get the following:
Code:
drwxr-xr-x 3 10   Functional-Wireless-Consumers      2011-01-03 23:29 install-media
drwx------ 2 10   Functional-Wireless-Consumers      2011-01-04 18:05 Downloads
drwxr-xr-x 2 10   Functional-Wireless-Consumers      2011-01-04 23:19 Desktop
-rwxrwxrwx  10   Functional-Wireless-Consumers      2011-01-31 21:24 list.sh

Can you please explain me the code and I was unable to get the one which you have asked for?

Thank You
Last edited by Scott; 02-02-2011 at 06:58 PM..
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Shell script newbie- how to generate service log from shell script

Hi, I am totally a newbie to any programming languages and I just started an entry level job in an IT company. One of my recent tasks is to create a script that is able to show the log file of linux service (i.e. ntpd service) lets say, if I run my script ./test.sh, the output should be... (3 Replies)
Discussion started by: xiaogeji
3 Replies

2. Shell Programming and Scripting

Pass C shell array to another C shell script(csh) and shell(sh)

Dear Friends, Please help me on this my script name is send.csh In this i have written the statement like this set args = ( city state country price ) I want to pass this array to another c shell called receiver.csh. and i want to use it in this c shell or how to pass to... (2 Replies)
Discussion started by: SA_Palani
2 Replies

3. Shell Programming and Scripting

How to write config shell script to pass variables in master shell script?

Dear Unix gurus, We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Discussion started by: dba1981
1 Replies

4. UNIX for Dummies Questions & Answers

How to write Config shell script to pass variables in master shell script?

Dear Unix gurus, We have a config shell script file which has 30 variables which needs to be passed to master unix shell script that invokes oracle database sessions. So those 30 variables need to go through the database sessions (They are inputs) via a shell script. one of the variable name... (1 Reply)
Discussion started by: dba1981
1 Replies

5. Shell Programming and Scripting

Unable to pass shell script variable to awk command in same shell script

I have a shell script (.sh) and I want to pass a parameter value to the awk command but I am getting exception, please assist. diff=$1$2.diff id=$2 new=new_$diff echo "My id is $1" echo "I want to sync for user account $id" ##awk command I am using is as below cat $diff | awk... (2 Replies)
Discussion started by: Ashunayak
2 Replies

6. Shell Programming and Scripting

Correct shell script to Call One shell script from another shell script

Hi All, I have new for shell scripting. Problem : I have one scrip at serv1 and path of server is /apps/dev/provimage/scripts and script name:extract_ancillary.bat. I need to call this script at server2(my working server) and execute at server2 . Please let me know how to build the... (5 Replies)
Discussion started by: Vineeta Nigam
5 Replies

7. Shell Programming and Scripting

call another shell script and pass parameters to that shell script

Hi, I basically have 2 shell scripts. One is a shell script will get the variable value from the user. The variable is nothing but the IP of the remote system. Another shell script is a script that does the job of connecting to the remote system using ssh. This uses a expect utility in turn. ... (2 Replies)
Discussion started by: sunrexstar
2 Replies

8. Shell Programming and Scripting

How to use ssh execute other shell script on other host (shell script include nohup)?

i want use ssh on the host01 to execute autoexec.sh on the host02 like following : host01> ssh host02 autoexec.sh autoexec.sh include nohup command like follwing : nohup /home/jack/deletedata.sh & after i execute ssh host02 autoexec.sh one the host01. i can't found deletedata.sh... (1 Reply)
Discussion started by: orablue
1 Replies

9. Shell Programming and Scripting

invoking a shell script inside cgi shell script

Hi, I have an HTML form through which I get some text as input. i need to run a shell script say script.sh inside a perl-cgi script named main_cgi.sh on the form input. I want to write the contents of the form in a file and then perform some command line operations like grep, cat on the text... (2 Replies)
Discussion started by: smriti_shridhar
2 Replies

10. Shell Programming and Scripting

How to Run a shell script from Perl script in Parent shell?

Hi Perl/UNIX experts, I have a problem in running a shell script from my perl script (auto.pl). I run the perl script using perl auto.pl from the shell prompt The shell script picks the files in "input" folder and procesess it. The shell script blue.sh has this code. export... (16 Replies)
Discussion started by: hifake
16 Replies
Login or Register to Ask a Question