Sumit Das Tech Notes

Usage of tcpdump » Linux by Examples Usage of tcpdump » Linux by Examples Wednesday, August 12, 201512:23 PM This post will only covers the fundamental of tcpdump usage, bare in mind tcpdump can do much much more than what I illustrate here.Lets start...

Usage of tcpdump » Linux by Examples Wednesday, August 12, 201512:23 PMThis post will only covers the fundamental of tcpdump usage, bare in mind tcpdump can do much much more than what I illustrate here.Lets start with capturing packets based on netwo...

Port is open or closed on UNIX? - Stack Overflow Port is open or closed on UNIX? - Stack Overflow Wednesday, August 05, 20152:23 PM Try (maybe as root)lsof -i -Pand grep the output for the port you are looking for.For example to check for port 80 dolso...

How to add a character on every line in vi editor How to add a character on every line in vi editor Saturday, August 01, 20153:22 AM 05-15-2008, 05:08 AM #2ilikejamSenior MemberContributing Member Registered: Aug 2003Location: GlasgowDistribution: Fed...

Bash Shell: Display All Hidden Dot Files In a Directory Bash Shell: Display All Hidden Dot Files In a Directory Saturday, August 01, 20153:12 AM ≡ MenuTutorialsBASH ShellTroubleshootingNginxNetworkingMySQLGoogle Cloud PlatformAmazon Cloud ComputingRac...

Re: Download SAP icons to files Gregor Wolf 16-Jan-2005 16:57 ... https://scn.sap.com/thread/24174

STARTRFC - Start SAP RFC Function Modules From any Server Within Your Landscape startrfc is a very easy SAP command line interface to start all of the implemented function modules of SAP systems. SAP Kernel Programs startrfc in a SAP System You ...

It is a very common misconception that "sequential reads in SM50 means that a full table scan is executed and an index is not used". The correct definition/concept is:Direct read The term "Direct read" refers to accesses in which a maximum of one line ...

Network Port Test Using SAP NIPING Some companies have additional security policies that remove the Telnet application from the local desktop PCs. This can prove difficult for SAP BASIS people trying to test if a specific network port is reachab... http://darrylgriffiths.blogspot.com/2014/01/network-port-test-using-sap-niping.html

String Comparison Description Str1 = Str2 Returns true if the strings are equal Str1 != Str2 Returns true if the strings are not equal -n Str1 Returns true if the string is not null -z Str1 Returns true if the string is null Numeric Compariso... http://codewiki.wikidot.com/shell-script:if-else