extract value between two search patterns on same line
I have the following in a file Output.dat. I need to extract the value between dn: uid= and ,ou=
text-processing
Command line tool to “cat” pairwise expansion of all rows in a file
Suppose I have a file (call it sample.txt) that looks like this:
What is the easiest way to add a string on the beginning of every line of the file from the command line?
I am looking for a way to add some string to the beginning of every line (same string for every line).
Not something customizable but rather something that will be easy to remember and available on every POSIX-compliant platform (and every shell as well).
Print odd-numbered lines, print even-numbered lines
I want to print the odd-numbered and even-numbered lines from files.
How to bulk convert all the file in a file system branch between Unix and Windows line break format?
Everybody knows 🙂 that in Windows plain text files lines are terminated with CR+LF, and in Unix&Linux – with LF only. How can I quickly convert all my source code files from one format to another and back?
Text between two tags
I want to retrieve whatever is between these two tags – <tr> </tr> – from an html doc.
Now I don’t have any specific html requirements that would warrant for an html parser. I just plain need something that matches <tr> and </tr> and gets everything in between and there could be multiple trs.
I tried awk, which works, but for some reason it ends up giving me duplicates of each row extracted.
How to insert text after a certain string in a file?
Right now I’m using
How to get all lines between first and last occurrences of patterns?
How can I trim a file (well input stream) so that I only get the lines ranging from the first occurrence of pattern foo to the last occurrence of pattern bar?
How to count the number of a specific character in each line?
I was wondering how to count the number of a specific character in each line by some text processing utilities?
sum pair of columns based on matching fields
I have a large file in the following format: