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With this simple sed command we can easily comment and entire file.
There are 10 alternatives - vote for the best!
If you can do better, submit your command here.
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no need the ending 'g'.
'g' means for all occurences in a line, the line starting can't be present more than once on a line.
correct command is either:
sed -i 's/^/#/1' FILENAMEor
sed -i 's/^/#/' FILENAMEAhh thanks for the update, I will go ahead adn fix this command.
And here's a solution for systems without GNU sed:
echo "%s/^/#/^Jwq"|ex FILENAMEnote that ^J is Ctrl-J, depending on shell settings you need to prefix it with Ctrl-Q or Ctrl-V when entering. I didn't use '
seems as if I once again found a bug in this site :-| The dropped part of the sentence was that I did not use three less than symbols because that also does not work on most systems...