sed Match character range
Is there a way to match some Unicode range exactly.
Let’s use the Cyrillic range as an example: U+400 to U+52f
sed
What does <<< mean?
What does <<< mean? Here is an example: $ sed 's/a/b/g' <<< "aaa" bbb Is it something general that works with more Linux commands? It looks like it’s feeding the sed program with the string aaa, but isn’t << or < usually used for that? Answers: Thank you for visiting the Q&A section on Magenaut. … Read more
sed one-liner to delete everything between a pair of brackets?
I am working with some text that is full of stuff between brackets [] that I don’t want. Since I can delete the brackets myself, I don’t need the one-liner to do that for me, but I do need a one-liner that will remove everything between them.
sed: delete all occurrences of a string except the first one
I have a logfile with timestamps in it. Occasionally there are multiple timestamps in one line. Now I would like to remove all of the timestamps from a line but keep the first one.
Add prefix and suffix to every line in a .txt file
I am trying to append and prepend text to every line in a .txt file.
Remove only the commas present within the double quotes
In a text file, I want to remove , (commas) and also the " (quotes) (only if the double quotes contains numbers separated by commas).
Convert all text from uppercase to lowercase and vice versa?
My question is how can I convert all text from uppercase to lowercase and vice versa? That is to change the cases of all the letters. It has to be done with a sed replacement somehow.
How do I replace the last occurrence of a character in a string using sed?
How do I replace only the last occurrence of “-” in a string with a space using sed?
Print previous line after a pattern match using sed?
I want to print previous line,every time a match was found. I know about grep -A and -B options. But my Solaris 5.10 machine doesn’t support those options.