how do I use grep write?

[errigour]

I want to use grep to search for a single script in every directory and every file that is readable by my pc. Could someone help me with this?

[meton_magis]

man grep
/recursive

scroll up to see full option

-d ACTION, --directories=ACTION
If an input file is a directory, use ACTION to process it. By
default, ACTION is read, which means that directories are read
just as if they were ordinary files. If ACTION is skip, direc-
tories are silently skipped. If ACTION is recurse, grep reads
all files under each directory, recursively; this is equivalent
to the -r option.



grep -r "regular expresion" /
note however you will get a LOT of errors, luckily, stderr and stdout are 2 different thigs, I suggest

egrep -r "regular expresion" / > ~/some_file

this will place your results in a txt file under your home directory named "some_file"