Entries from July 2009
Take full advantage of your terminal capabilities
Suppose that you are using a terminal in which the screen size is bigger than the normal 24 lines. If you want to use p and take full advantage of your terminal capabilities, what choices are open to you? You have to specify the screen size each time you use P. $P-36. Also you could Read More...
ZAP program
Explain about ZAP. ZAP, which selectively kills processes, is another program. The main problem with that version is speed; it creates so many processes that it runs slowly, which is especially undesirable for a program that kills errant processes rewriting ZAP in C will make it faster. Read More...
How to search files for lines that match a pattern?Search files for lines that match a pattern
How to search files for lines that match a pattern? Grep command searches for files for lines which match a pattern. E.g. g/regular expression/p.grep will also look for lines that don’t match the pattern, when the option-V is sued. grep can be used to search several files in that case it will prefix the filename. Read More...
Cat
Explain about cat. Cat is the simplest of all the printing commands. Cat prints the contents of all the files named by its arguments. The named file or files are catenated the terminal one after another with nothing between. You have to be quick with CTRL-S to stop O/P from cat before it flows off Read More...