Tag: sed

Get rid of single quotes from the substituted string within sed command in Python

I have a text file 1.txt which has following content: I am trying to generate multi-line string that I need to add before module abc line in 1.txt. I am using sed to do this. This is the sed command I am forming and printing before executing it: When I execute the above sed command, I get error: There shouldn’t

Prepend a url to all relative image links in a markdown document

awk markdown marko python sed

I have a bunch of markdown documents with a mix of relative and absolute image destinations. e.g. I want to prepend a URL to each of the relative images, e.g. to change the above to but preferably without hard-coding /sub/folder/ into the replace script (which is how I currently do it). Is there a clever way to do this with

How to completely erase the duplicated lines by linux tools?

awk grep python sed uniq

This question is not equal to How to print only the unique lines in BASH? because that ones suggests to remove all copies of the duplicated lines, while this one is about eliminating their duplicates only, i..e, change 1, 2, 3, 3 into 1, 2, 3 instead of just 1, 2. This question is really hard to write because I

What are the differences between Perl, Python, AWK and sed? [closed]

awk language-comparisons perl python sed

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 10 years ago.