Unix OS

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Unix is a multitasking, multi-user computer operating system originally developed in 1969 at Bell Labs. Today, it is a modern OS with many commercial flavors and licensees, including FreeBSD, Hewlett-Packard’s UX, IBM AIX and Apple Mac OS-X. Apart from its command-line interface, most UNIX variations support the standardized X Window System for GUIs, with the exception of the Mac OS, which uses a proprietary system.

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Hi,
I have isntalled centos on top of the oracle virtual box. Now how to give commands like
pwd
ls -ltr
etc.

Where i have to go to issue those commands and see results. please advise.
any good…

653 views
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Currently we create accounts on our Nokia & JunOS firewalls for Tripwire to ssh login to extract
security parameters/settings for compliance checking.

However, these accounts expire every 90 days …

631 views

We have certain field whose name has a special character, in this case its an spanish "Ñ" the field name is "año" (Year) and when we execute the next sentence it returns the next error:

select …

1148 views

I got the next expression that gives me the current date just like i need it (ddmmyyyy) :

$(date "+%d%m%Y")

Today is monday, i need the last working day (friday) so i need $(date "+%d%m%Y") …

1153 views

Certain SQL sentences return a value, however, the SAME sentence, against the same database would return also the column (field) name by doing it in windows, and write out to the output file, and from…

1145 views

hi,

i have 1 million record txt file and i want grep and remove only those line and save the file.

i tried following..
sed '/pattern/d' filename..it gave me output but didnt save

sed '/pattern/d' …

829 views

I have multiple lines like the following line
'/home/user1/myapp -s -t -f /tmp/abc.cfg
I need to extract /tmp/abc.cfg out. It always prefix with this token '-f;'. The extracted string has to have …

525 views

is it possible to use such command in bash file:
 gawk -f load.awk $new_columns.txt > $new_lod.sql
i get error: cannot open .txt file. look like is not possible of i make it wrong.
dosen't matter …

337 views

I have a file with cloumns from tables
i want to create a file like this

select name ||','|| fname ||','|| id from test;

i write a awk command like this

gawk 'BEGIN{print "select"} {print …

842 views

I created a Linux Centos 7 Virtual Machine using Hyper V on Windows Server 2012. We have a Failover Cluster Manager with two nodes managing a bunch of VM's.

Initially, I allocated only one virtual …

968 views
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So my script does many things and it does them rather fast thanks to all that have helped out over the past two days.  I would like to pause the script and allow the user to hit Y to continue is this …

940 views

Requirement is to have an ongoing log file where entries are periodically written to the file.  Current Perl script opens file in append mode, so that if file already exists, then entries are simply …

1794 views

I want to severly shorten a routine command that my group uses all the time.  This command really a perl script takes several parameters, e.g.

    GenDbxSchem.pl  -user X  -rel 4.0.0.-ER5.6A  …

554 views

So my script  has the following in the beginning:
 USERNAME = Joe_user

How can I have the script pull who is currently logged in and place that name in the spot of <joe_user>?  Right now there is …

434 views

I get the next error in certain SQL sentence from SQLPLUS in Unix, but it works smoothly by executing it in windows

ORA-00972: identifier is too long

Here is the piece of sql code that throws …

1769 views

So I have one file that I need to scp to multiple machines.  In the beginning this was easy as we only had 3 machines, now we have over 40 and it gets old real fast typing in the same thing over and …

444 views

I have a shell of a script below that I would like to try out.  These are daily tasks, that if I had a menu, would be much easier.

The hard part I see if passing my credentials from one host …

556 views

We have certain SQL file that execute several queries.

It works smoothly and throws out its result by using it from SQL PLUS client in windows however the same sql file throws some errors by runing…

745 views

Are Martian Packets automatically monitored in syslog or must you set up a script/program to record them in UNIX.

Solaris 10.5

551 views
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When log file has entry like:
2016-11-29      07:03:09        GET     0000LYQd5e_40cf-8f13-678b5949683d-008dc810   0:298790:1      /integration/worklistapp/Login  302    357
which type of logformat …

17121 views

I had this question after viewing i can not do linux commands in cygwin windows 10 (https://www.experts-exchange.com/questions/28987220/i-can-not-do-linux-commands-in-cygwin-windows-10.html).


Are…

17167 views

if at the end of the line is not - (dash) then dash if exist do nothing in vi
how?

i have a huge file and at the end of every line should be a dash  some line does not have a dash at the end of …

779 views

Hi,
I'm trying to make a bash script (oslevel = AIX 7100-04-02-1614) that's going to restore my DB2 database from an existing backup into a different database (DB2PRD3 - DB2PRD4)

below are the …

796 views

In our server, the mount points configured on the server as below

==
10.17.0.5:/export/SAP_SHRD_APP1/adminsrv   --  /u01/app/oracle/admin
10.17.0.5:/export/SAP_APP1/APP1_domain01   -- …

868 views

trying to untar a file I get the following error
tar: can't set time on log: Not Owner

366 views
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