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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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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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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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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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This question attempts to collect the few pearls among the dozens of bad C++ books that are released every year.Unlike many other programmin...
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Join command is one of the text processing utility in Unix/Linux. Join command is used to combine two files based on a matching fields in th...
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In computer programming , undefined behavior refers to computer code whose behavior is unpredictable. It is a feature of some programming l...
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Many times its required inside a shell script that you need to replace a string in a file with a value which is present in a environment var...
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