Redirecting cron job output to log file
How to redirecting cron job output to log file :
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*/5 * * * * /home/venkatesh/campaign.sh >> /var/log/precampaign.log 2>&1 |
Note : 2>&1 indicates that the standard error (2>) is...
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VSFTP “500 OOPS: cannot change directory” refusing to run with writable root inside chroot()
Getting rid of “500 OOPS: cannot change directory” vsftpd error : We usually get the “500 OOPS: cannot change directory”...
Install OpenSSL from the Source code.
Installing OpenSSL from the Source code : First of all, Download the OpenSSL from the official website download page https://www.openssl.org/source/
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tar zxf openssl-VERSION.tar.gz cd openssl-VERSION ./config [options] make make install |
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How to move Ubuntu Unity Launcher panel to bottom of the screen
Finally, After many years of waiting, Ubuntu 16.04 LTS allows users to move Unity Launcher panel to the bottom of...
Capturing SIP and RTP traffic using tcpdump
Tcpdump is command-line packet analyzer, It has a lot of cool features to capture the network traffic. Let’s see the...
Installing ngrep on the CentOS 6.7
How to install ngrep on CentOS : ngrep is not added to default repository, We need to add epel reposudo...
Ubuntu : Static IP Configuration in Ubuntu 14.04 and Debian 7/8
Static IP Configuration in Ubuntu 14.04 : Open Terminal and become sudo.sudo su Then Open network interfaces file using any...
Installing OpenSIPS from the Debian Package on Ubuntu 14.04 and Debian 8 jessie
OpenSIPS is not included in the Ubuntu Official Repositories. So we need to add it exclusively. Let’s start by adding...
pattern 10: C Program to print triangle Star pattern ( Pencil Shape Pattern)
Introduction: We are going to write a C program to print the Pencil Shape Pattern using the stars. We will...
c program to convert octal number into the Decimal number.
Example: Octal = 123 Decimal= 1×8²+2×8¹+3×8⁰ = 83 Program (Octal to Decimal Conversion): #include<stdio.h> #include<math.h> int main () { int decimal=0, i=0, rem=0,n,n1; ...