What am I doing wrong with grep?

what's wrong with my grep command? - Ask Ubuntu

While in the later case when you just do grep 'something' , there no file name given and hence grep will read its STDIN for input, no pipe is ...

What am I doing wrong with grep? - Super User

1 Answer 1 ... Your cpp is in DOS format that is its line termination is done by \r\n sequences and you have a 'grep --color=auto' alias existing ...

What's wrong with this grep? - Unix & Linux Stack Exchange

If the input going into the grep pipe contains square brackets ('[' and ']'), grep will have a hard time handling them gracefully. You must ...

The Most Confusing Grep Mistakes I've Ever Made - Reddit

technically, bash(zsh) overwrote your file, grep doesn't actually have write capability to edit files in place on its own. Knowing that doesn't ...

The Most Confusing Grep Mistakes I've Ever Made - Blog

In other words, it's waiting for you to type in some text by hand so it can search it for your term. Therefore, if you try to do a grep search ...

When I get a grep command wrong it breaks my bash. How do i get ...

It sounds like you're failing to specify input for grep to scan, either by naming files on the command line or by redirecting input into it.

grep not working as expected - Unix & Linux Stack Exchange

Not all regular expressions are using the same symbols, as others have already pointed out. If you are on a system where the default grep ...

Confusing Grep Mistakes I've Made | Hacker News

Something that stood out for me is that the author did not mention ^V, which is very useful in quoting metacharacters. Take the tab example: The ...

Why do my grep command lines not work? - Quora

They work. Possibly they don't do what you want to do, but they work. [code bash] $ grep --v grep (BSD grep) 2.5.1-FreeBSD [/code] Following ...

Cannot get results from grep command - The UNIX and Linux Forums

grep is not ignoring the white spaces, most likely the white spaces are not matching. ie it could be that white spaces are tabs or mix of tab and single spaces.

Grep returns nothing - UNIX and Linux Forums

Grep returns nothing ... It pretty much means that the string you are searching for was not found. ... The string does exist. If i do a head -50 , then i can see ...

the command 'grep' is so slow - LinuxQuestions.org

If you're running grep over a very large number of files it will be slow because it needs to open them all and read through them. If you have some idea of where ...

Why Is Grep Returning No Matches? - InMotion Hosting

Grep is not meant to work that way. Grep can perform search operations on input, for example, when you are piping into, or it works upon a file ...

why does grep stop matching and error with binary file matches

grep by default does not like to output binary data (as outputting binary data may well mess up the terminal, for instance) and therefore it ...

[SOLVED] Is there a way to tell if grep is doing anything? [Archive]

You never gave grep a file(s) to do the search on. When it's not given a file as parameter, grep waits for its input from the keyboard which is ...

grep searches solely for text? - Linux Mint Forums

The alternative explanation: grep actually does not process regular expressions, is too silly to contemplate. What am I doing wrong? Thanks!

Problem with GREP - AppleScript | Mac OS X - MacScripter

Not understanding GREP well enough to fix a problem. I have a GREP search ... My reasoning is that doing that would take the same amount of time as the ...

Why doesn't my grep expression work? - Biostars

Tested it in google colab. Tested it in regex101 (it works as expected). What am I doing wrong? grep regex • 2.4 ...

Linux Crash Course - The grep Command - YouTube

... grep"? 03:12 - Piping the cat command into grep 03:58 - How to omit a ... will hopefully be helpful to you and teach you something new ...

grep command in Unix/Linux - GeeksforGeeks

You can display the lines that are not matched with the specified search string pattern using the -v option. grep -v "unix" geekfile.txt. Output ...