I have an input file Input.txt with the following sample keywords: I also have a file Text.txt to search such as: I want to print grep Keyword followed by a match if the grep finds a match. The desired output: Answer With awk you could do something like this: In a more readable format it would be:
Tag: grep
Linux grep command to find the value of key from json
I have a JSON output that contains a list of objects stored in a variable.(I may not be phrasing that right) Output of a curl command: will post in comment as I am unable to post here I want to grep the value at this position “ad6743fae9c54748b8644564c691ba58” shown in the output, which changes everytime i run the curl command. I
Fastest way to extract pattern
What is the fastest way to extract a substring of interest from input such as the following? Desired output (i.e., the :-terminated string following the string MsgTrace(65/26) in this example): noop I tried the following, but without success: Answer grep by default returns the entire line when a match is found on a given input line. While option -o restricts
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,
Read line by line and print matches line by line
I am new to shell scripting, it would be great if I can get some help with the question below. I want to read a text file line by line, and print all matched patterns in that line to a line in a new text file. For example: The intended output is as follows: I tried the following code: which
How to grep string and show previous word in a Linux file
i have a file with a lot of IPs and each IP have an ID, like this: Below this Ips and after these Ips the file have more information, its a output to an API call.. I need, grep a IP and then the command shows the id, just the number. Like this: EDIT: More information, the ip will be
How To Delete A File Every X Times A Script Is Run – Manage A Log File From Inside A Script?
I would normally just schedule this as a cron job or script, however, I would like to delete a log file (it’s constantly appended to every time a script runs) only after 50 times. Needed Inside The Script: The thing is, since the script does not run consistently, it has be to be implemented within the script itself. Please note:
grep with star symbol
What is the difference between grep commands: and what is different if I search text as “text”. Answer grep requires (at least) two arguments — what you are searching for, and where you are searching for it. If the second argument is not provided, then it will use stdin instead. grep text* is waiting for stdin to provide it something
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:
How to find all files containing specific text (which includes a backslash)?
I thought I found the perfect answer with How do I find all files containing specific text on Linux?, so I tried it: None show, but I know there should have been a match. I also tried escaping the backslash to no avail. Also tried single quotes to no avail. How to find all files containing specific text which includes