Comparing two files using Unix and Awk
I need to compare two files, File1 and File2 (Separated by space) using 4 fields (Field 1, 2, 4 and 5 of File 1 with field1, 2, 4 and 5 of File2).
sed
Delete duplicate lines pairwise?
I encountered this use case today. It seems simple at first glance, but fiddling around with sort, uniq, sed and awk revealed that it’s nontrivial.
Merging two files, one column at a time
I have 2 large files (3000 columns, 15000 rows) of the following format
remove lines that contain a specific text in a file
I have a file with a list of emails in it and each line has an email in it. I want to remove lines that contain the string example.com or test.com.
How to add a new text line at the first line of a file?
File: TABLE1 1234 9555 87676 2344 Expected output: Description of the following table: TABLE1 1234 9555 87676 2344 Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or … Read more
How to append text to the end of a certain line of a file?
If I needed to append a username to the end line 32 on a file, how would I do so?
How to assign result of sed to variable
Below is a complete copy of a demo I’m using to to figure out to get the sed command to get rid of the spaces in a persons name, and compress it down to not have spaces.
What does :: do in script of sed
I would like to know what it really does with following scripts used with sed command.
Variable in sed
I have a file that contains filenames with absolute path.