Popular posts of the unix school linux interview questions part 1 10 tips to improve performance of shell script. Hey everybody welcome back to my ongoing series on mastering your command line its time to command and conquer as always make sure you check out some of the other posts in the series this week were going to take a look at two very important commands for your toolbox sed and awk these . Sed and awk pocket reference 2nd edition arnold robbins on amazoncom free shipping on qualifying offers for people who create and modify text files sed and awk are power tools for editing sed awk. Sed awk describes two text processing programs that are mainstays of the unix programmers toolboxsed is a stream editor for editing streams of text that might be too large to edit as a single file or that might be generated on the fly as part of a larger data processing step the most common operation done with sed is substitution replacing one block of text with another
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