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At times you need to specify different courses of action to be taken in a shell script, depending on the success or failure of a command. Th...
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Most of the time it is required that w eneed to rename the files in bulk. this can be done in many ways,Mostly people do it by writing a s...
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Normally while working on PL/SQL stored procedures , we use DBMS_TRACE for knowing about the values of various variables and put some print...
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Below is a most simple command for Sorting Unix processes by highest memory usage: ps -eo pmem,pid,pcpu,rss,vsz,time,args | sort -k 1 -r
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I have two files File 1 contains 3 fields File 2 contains 4 fields The number of rows of File 1 is much smaller than that of File 2 I...
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Often we need to execute some shell command and get the output of that shell command in c. system will simply execute the shell command but...
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Printing first 80 characters in a line.Below are the different ways to do it. Cut cut -c1-80 your_file Awk awk '{print substr($0,0,8...
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C++ supports pointers whereas Java does not support pointers. But when many programmers questioned how you can work without pointers, the p...
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As i explained here : http://theunixshell.blogspot.com/2013/01/capturing-all-regex-matches-into-array.html about storing each and each rege...
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How do you check for all the installed modules of perl in your environment. This will be very useful to know that when I know what are all ...