try: awk ‘FNR==NR{a[NR]=$3;next}{$2=a[FNR]}1’ f2 f1 Output: 111 000 444 222 111 555 333 555 666 Explanation of the above code: FNR==NR allows you to work with one entire file at a time. In this case it is the file f2. NR and FNR both contain line numbers with the difference being FNR gets reset to … Read more
I’m using Visual Studio Code 1.8, and this feature is available. But it’s a little tricky to understand at first, and (at the time of writing) the docs don’t explain clearly how to use it, so here’s how it works, step by step: Invoke Replace in Files (under the Edit menu, or with shortcut Ctrl+Shift+H) … Read more
Maybe something like this: sed ‘s/ab/~~/g; s/bc/ab/g; s/~~/bc/g’ Replace ~ with a character that you know won’t be in the string.