How to remove duplicate lines in a shell?

How to remove duplicate lines in a shell?

Removing Duplicate Lines With Sort, Uniq and Shell Pipes. Use the following syntax: sort {file-name} | uniq -u sort file.log | uniq -u. Remove duplicate lines with uniq. Here is a sample test file called garbage.txt displayed using the cat command: cat garbage.txt Sample outputs:

How to run multiple commands on the same line in PowerShell?

If you can, it really makes sense to use PowerShell pipelines. However, if you want to do run multiple unrelated commands on the same line, you can use the firstcommand; secondcommand method. In this case, the second command gets executed even if the first command fails.

How to remove duplicate rows from a text file?

(You now end up with a file that is sorted, and where every line is unique) However… the case that one bumps into is always the tricky case… If the file data is not ‘sorted’, but the order *is* important… then it’s a little trickier.

Is there a way to chain commands in PowerShell?

You can see there are many different ways you can chain commands in PowerShell depending on your needs. If you have any questions, feel free to leave a comment. Thomas works as a Senior Cloud Advocate at Microsoft.

How to remove duplicate strings in a script?

As long as you’re calling out to another scripting language, might as well consider something readable. 🙂 puts = “print whatever comes next” ARGV = “input argument array” uniq = “array method to perform the behavior you’re looking for and remove duplicates” join (‘ ‘) = “join with spaces instead of default of newline.

Is there any way to remove the duplicate entries in a bash script?

Is there any possible way to remove the duplicate entries using a Bash script? It deletes duplicate, consecutive lines from a file (emulates “uniq”). First line in a set of duplicate lines is kept, rest are deleted. This variation edits the file in-place, and makes a backup input.bak

How to remove a word from a string?

Functions like this: If a word is a second time in this line, remove it and start over until no dublication is found anymore. Or you could implement it as a Bash function, but the syntax is messy. The sed command removes the first line which is a header that we don’t want to read. The sort command gives us unique lines.