Merging two files, one column at a time
I have 2 large files (3000 columns, 15000 rows) of the following format
text-processing
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.
Why isn’t this awk command doing a full outer join?
Objective: Merge the contents of two files using common key present in the files
non-line-oriented tool for string replacement?
I recently asked a question about how to remove the newline character if it occurs after another specific character.
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 can I convert timestamps in a column to a date?
I have a file containing this:
How can I get the page numbers only of a pattern in a pdf file, regardless if the pattern is multiline?
I find the page numbers of a multiline pattern in a pdf file, by How shall I grep a multi-line pattern in a pdf file and in a text file? and How can I search a string in a pdf file, and find the physical page number of each page where the string appears?
Remove comments in a C file
I am trying to remove comments from a file which may be in any part of a line and span multiple lines. struct my_struct{ field1; field2; /** comment 1 */ field3; /* comment 2 */ } struct_name; I need to get struct my_struct{ field1; field2; field3; } struct_name; I tried using grep -o '[^/*]*[^*/]' to … Read more