The awk command can make it easy to remove duplicate characters from a string even when those characters aren’t sequential, especially when the process is turned into a script. First, the awk command ...

awk does a lot of common work for you when you use it to process text files. It reads files a record at a time. Normally, a record is a single line. Then it splits the line on fields using whitespace, ...

I am a bit stumped by this. I am no expert at sed/awk/grep, though I can usually find my way around... youngka@vadmin:~/www/nsr_19_data$ grep -iE '^[[:digit:]]+~[0-9 ...

Even after decades of using Unix on thousands of systems, I find that it’s still fun to discover various convolutions of sed and awk commands to perform command line wizardry. There’s a lot more to ...