I want to find emails from one file listed as such: in another file listed as so: and output the lines from the second file that match with the first file also keeping in mind it needs to match the entire email from start to finish so it won’t match robertjohn@blogs.com accidently. Desired output: Thanks! Answer With grep, get the
Tag: regex
Match unknown substring with RegEx
How can I get an unknown substring with an regular expression? I know what’s before and after the wanted string but I don’t want the known part with in the result. Example text: I’m looking for ‘SOMETHINGHERE’ and ‘SOMETHINGELSE’ only. vocher_ and .db are always before and after the relevant part but should not be in the result. A working
Using sed with regex to replace text on OSX and Linux
I am trying to replace some strings inside a file with sed using Regular Expressions. To complicate the matter, this is being done inside a Makefile script that needs to work on both osx and linux. Specifically, within file.tex I want to replace with (xxx and yyy are just example text.) Note, xxx could contain any letters, numbers, and _
Does hyphen need to be escaped in a regular expression?
The following returns a bunch of results including those containing “->emit” But the following returns no results Why? Answer You need to drop the -w option. It says to treat the expression as a whole word. A word must be bounded by non-word characters, i.e. it must only be surrounded by characters other than [a-zA-Z0-9_]. emit would match emit, _emit,
How to replace a word in a file with a word in another file in Linux
I want to change a word in a file, with another word that I get from another file. Let’s say I have 2 files : File #1 contains : jack File #2 contains : Hello name How can I replace the word “name” with “jack”? PS. File #1 contains only this word, no need for any regex. Answer This shell
Extract class names from JAR with special formatting
How would I extract all the available classes from a Jar file and dump the output, after some simple processing, to a txt file. For example, if I run jar tf commons-math3-3.1.6.jar a subset of the output would be: I would like to convert all / to . And all $ to . Finally I would also like to remove
Match Anything In Between Strings For Linux Grep Command
I have read the post grep all characters including newline but I not working with XML so it’s a bit different with my Linux command. I have the following data: Using this command cat file.txt | grep -o ‘<tag.*tag>|^–.*’ I get: However, I want the output to be: How can I match anything between the strings, including the newline? Note:
Unable to parse bash output using regex and collect a part of it
I am trying to parse out the recent load, from the output of this command – The first one after the load average: – I was using this, which worked – However, I realised that the value I am looking for may not always be the 10th variable. Hence I am trying to use regex here, but unfortunately, not able
how to replace decimal in linux
I have a csv file with error in one field, the fields are separated by “,” but the error is in decimal field, for example 34.25,” i need replace by 34.25″,”. Search ,” and replace by “,” is not option, others fields will modified. Answer Check that the character before ,” is not a double quote, and if it’s not,
How Do I Fix This SED Command to Find & Replace a String
Good-day, I’m working on a Bash script for Debian Jessie and in this line; I am trying to find base_dir}/scripts and replace it with script_dir} so that my new line will read as: This is what I have tried so far; which results in this error; I am confused as to how to resolve this and would appreciate some assistance