If you mean permutations, rather than combinations, this can be done relatively easily using recursion in a shell that has local variables:
Code:
#!/bin/ksh
function perm {
typeset p=$1 s=$2 i
for i in "${NR[@]}"
do
if [ $p -eq 1 ]; then
printf "%s%s=\n" "$s" "$i"
else
perm $((p-1)) "$s$i+"
fi
done
}
while read nr; do
NR[$((i++))]=$nr
done < infile
perm ${#NR[@]}
The trouble is the exponential increase in the time required with increasing numbers
Hi all
I've got MacOSX server which is a UNIX based system. I've got 2 partiontion an I like to make just one partition on he disk without loosing any data on part1. Is there a way to do that kind of thing in UNIX or do I have to format everything and put up the system again?
Thanx for reading... (3 Replies)
Hello All,
I just wanted to know what are the different ways of using commands in combination.
The most common one which i know is using pipes.
Also grouping is also done like ( ls; date) where output of both the commands is displayed.
Are there any other ways of combining various... (2 Replies)
I want to show a output like this
Lee Ballancore
PID TTY TIME CMD
31799 pts/3 00:00:00 vim
31866 pts/3 00:00:00 vim
2495 pts/7 00:00:00 vim
8368 pts/0 00:00:00 vim
9544 pts/2 00:00:00 ps
Alistairr Rutherford
PID TTY TIME CMD
8368 pts/0 00:00:00 vim
9544 pts/2 00:00:00 ps
... (3 Replies)
Howdy experts,
We have some ranges of number which belongs to particual group as below.
GroupNo StartRange EndRange
Group0125 935300 935399
Group2006 935400 935476
937430 937459
Group0324 935477 935549
... (6 Replies)
Hi
I have 2 files like:
file1
a 12
b 1
a 3
file2
a 9
c 0
a 8
and i would like to get
a 12 a 9
a 3 a 8
i can do it with grep and paste with 3 lines. I tried to combine using: (3 Replies)
Hello All,
I am having problem to find what is the smallest number from 90% of highest numbers from all numbers in file. I am having file with thousands of lines and hundreds of columns.
I am familiar mainly with bash but I am open to whatever suggestion witch will lead to the solutions.
If I... (11 Replies)
Is there any program that can create 6 digit numbers with:
(DIGIT_1)+(DIGIT_2)+(DIGIT_3)+(DIGIT_4)+(DIGIT_5)+(DIGIT_6)=10
Any perl or C also can. Anyone can help me? Thank you (6 Replies)
Hi folks,
I have a numbers from 1-100 and from these nos I have 30 numbers.. From this 30 nos, I have to generate a combination of 6 nos... this 30 numbers will range from 1-100... ( FYI: This is not a lottery game - just kidding) ... I am trying out this in a shell script.. any ideas ? (3 Replies)
Good morning, In a Production environment ive seen this command that kills processes
kill -9 -1
Because i am in a production environmet i can not execute this comamnd, so i would like to know what is the difference for the conventional kill -9 PID ?
Thanks a lot (11 Replies)
Discussion started by: alexcol
11 Replies
LEARN ABOUT DEBIAN
dpns-getacl
DPNS-GETACL(1) DPNS User Commands DPNS-GETACL(1)NAME
dpns-getacl - get DPNS directory/file access control lists
SYNOPSIS
dpns-getacl [-a] [-d] path...
DESCRIPTION
dpns-getacl gets the Access Control List associated with a DPNS directory/file. For each path, it displays the file name, owner, the
group, and the Access Control List (ACL) if present. If a directory has a default ACL, dpns-getacl also displays the default ACL. Regular
files cannot have default ACLs.
The output looks like:
# file: filename
# owner: username
# group: groupname
user::perm
user:uid:perm
group::perm
group:gid:perm
mask:perm
other:perm
default:user::perm
default:user:uid:perm
default:group::perm
default:group:gid:perm
default:mask:perm
default:other:perm
The first "user" entry gives the permissions granted to the owner of the file. The following "user" entries show the permissions granted
to specific users, they are sorted in ascending order of uid. The first "group" entry gives the permissions granted to the group owner of
the file. The following "group" entries show the permissions granted to specific groups, they are sorted in ascending order of gid. The
"mask" entry is the maximum permission granted to specific users or groups. It does not affect the "owner" and "other" permissions. The
"mask" entry must be present if there are specific "user" or "group" entries. "default" entries associated with a directory are inherited
as access ACL by the files or sub-directories created in that directory. The umask is not used. Sub-directories also inherit the default
ACL as default ACL. As soon as there is one default ACL entry, the 3 default ACL base entries (default user, default group, default other)
must be present.
The entry processing conforms to the Posix 1003.1e draft standard 17.
path specifies the DPNS pathname. If path does not start with /, it is prefixed by the content of the DPNS_HOME environment variable.
uid is displayed as the username if known else as the numeric id.
gid is displayed as the groupname if known else as the numeric id.
perm is expressed as a combination of characters rwx-
OPTIONS -a only display the access ACL.
-d only display the default ACL.
EXAMPLES
dpns-getacl /dpm/dteam/test/file.log/d2
# file: /dpm/dteam/test/file.log/d2
# owner: baud
# group: c3
user::rwx
group::r-x #effective:r-x
other::r-x
default:user::rwx
default:group::r-x
default:other::r-x
EXIT STATUS
This program returns 0 if the operation was successful or >0 if the operation failed.
SEE ALSO Castor_limits(4), dpns_chmod(3), dpns_chown(3)AUTHOR
LCG Grid Deployment Team
DPNS $Date: 2005/03/02 08:32:12 $ DPNS-GETACL(1)