Hi,
what is the difference between use and require keywords in Perl.
What is the significance of these lines (what it mean, what is the use of this)
#!/usr/bin/perl -w // In Perl script....
#!/bin/ksh //In shell script.....
Thanks
Sweta (2 Replies)
Hey guys,
I have this file generated by me... i want to create some HTML output from it.
The problem is that i am really confused about how do I go about reading the file.
The file is in the following format:
TID1 Name1 ATime=xx AResult=yyy AExpected=yyy BTime=xx BResult=yyy... (8 Replies)
hey guys,
Hey all,
I'm doing a project currently and want to index words in a webpage.
So there would be a file with webpage content and a file with list of words, I want an output file with true and false that would show which word exists in the webpage.
example:
Webpage content... (2 Replies)
Hi
I want to extract all the words between two keywords HELLO & BYE.
eg:
Input
1_HELLO_HOW_ARE_YOU_BYE_TEST
1_HELLO_WHERE_ARE_BYE_TEST
1_HELLO_HOW_BYE_TEST
Output Required:
HOW_ARE_YOU
WHERE_ARE
HOW (7 Replies)
Hi
I am trying to determine number of lines having a specific keyword.
So for that I am using below query:
grep -i 'keyword1' filename|wc -l
This give me number of lines. Perfect for me.
However now the requirement is
I have multiple keywords together... and I have to find number of... (3 Replies)
I have below text file only with one line:
vi test.txt
This is the first test from a1.loa1 a1v1, b2.lob2, "c3.loc3" c3b1, loc4 but not from mot3 and second test from a5.loa5
Below should be the output that i want:
a1.loa1
b2.lob2
c3.loc3
loc4
a5.loa5
alv1 and c3b1 should be... (3 Replies)
Hi,
My syslog in AIX forwards all user facility to a specific log /logs/user.log
I need to further segregate the user.log to logs specific to various applications and i was wondering if i can make some configuration change to syslog.conf to forward messages based on a certain keyword?
for... (2 Replies)
Discussion started by: roshan.171188
2 Replies
LEARN ABOUT LINUX
lsns
LSNS(8) System Administration LSNS(8)NAME
lsns - list namespaces
SYNOPSIS
lsns [options] [namespace]
DESCRIPTION
lsns lists information about all the currently accessible namespaces or about the given namespace. The namespace identifier is an inode
number.
The default output is subject to change. So whenever possible, you should avoid using default outputs in your scripts. Always explicitly
define expected columns by using the --output option together with a columns list in environments where a stable output is required.
Note that lsns reads information directly from the /proc filesystem and for non-root users it may return incomplete information. The cur-
rent /proc filesystem may be unshared and affected by a PID namespace (see unshare --mount-proc for more details). lsns is not able to see
persistent namespaces without processes where the namespace instance is held by a bind mount to /proc/pid/ns/type.
OPTIONS -J, --json
Use JSON output format.
-l, --list
Use list output format.
-n, --noheadings
Do not print a header line.
-o, --output list
Specify which output columns to print. Use --help to get a list of all supported columns.
The default list of columns may be extended if list is specified in the format +list (e.g. lsns -o +PATH).
-p, --task pid
Display only the namespaces held by the process with this pid.
-r, --raw
Use the raw output format.
-t, --type type
Display the specified type of namespaces only. The supported types are mnt, net, ipc, user, pid, uts and cgroup. This option may
be given more than once.
-u, --notruncate
Do not truncate text in columns.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
AUTHORS
Karel Zak <kzak@redhat.com>
SEE ALSO nsenter(1), unshare(1), clone(2), namespaces(7)AVAILABILITY
The lsns command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux December 2015 LSNS(8)