Grep through gz files

Use zgrep to grep a gzip gz file. By Alvin Alexander. Last updated: November 13, Linux gzip: How to work with compressed files. Linux grep command man page. A specific string in one file can occur in another files. If this string is in other files. Then all the files in which this string occured should be deleted and only 1 file should remain with the string. Hi All, Can we grep one word in two file at same time. Hi, I have 10 folders like a1,a2,a RedHat Commands. OpenSolaris Commands. Linux Commands.

SunOS Commands. FreeBSD Commands. Full Man Repository. Active Oldest Votes. If you have zgrep you can use zgrep -a string file. Improve this answer. This is the one that was helpful for me.

All options specified are passed directly to grep so the "case-insensitive" flag -i was also helpful. Jester's answer actually does do the proper thing — Jim. Jim my zgrep does handle tar files. On the other side, Jesters solution doesn't work for me.

It gives some broken pipe exceptions from awk on writing to stdout. Show 5 more comments. Community Bot 1 1 1 silver badge. Jester Jester 54k 4 4 gold badges 71 71 silver badges bronze badges.

Does this look for bar? How come the results don't have bar in them — Katie. Kayvar notice we are grepping in the file contents but printing the file name as OP wanted. I know this question is 4 years old, but I have a couple different options: Option 1: Using tar --to-command grep The following line will look in example.

Katie Katie Both the below options work well. Nutan Nutan 9 9 silver badges 13 13 bronze badges. The OP needs the filenames of matches in a tarball. Alex RE. Since your problem is speed, I suspect this is a giant file that you don't want to extract first, but if you can, this will speed things up a lot: tar zxf file.

Jim Stewart Jim Stewart 16k 4 4 gold badges 64 64 silver badges 88 88 bronze badges. I see you're new to Stack Overflow. Welcome aboard! If this helps, please consider upvoting the answer if it's merely helpful or accepting it if you consider it a solution.

Of course you can wait for a better answer as well. For starters, you could start more than one process: tar -ztf file. From man grep : -l, --files-with-matches Suppress normal output; instead print the name of each input file from which output would normally have been printed.

In the case of grep, the command exits with '0' status when it's successful meaning, a match was found , while it exits with status '1' when no match was found. By default, the grep command displays the name of files containing the search pattern as well as matched lines.

This is quite logical, as that's what expected of this tool. However, there might be cases wherein the requirement could be to get names of those files that do not contain the searched pattern. This is also possible with grep - the -L options lets you do this. So, for example, to find all those text files in the current directory that does not contain the word "how", you can run the following command:. If you want, you can also force grep to mute any error messages it displays in the output.

This can be done using the -s command line option. As clear from the example used in the previous point, the grep command doesn't do a recursive search by default.

To make sure your grep search is recursive, use the -d command-line option and pass the value 'recurse' to it.

As we have already discussed, the -l command-line option of grep is used when you only want the tool to display filenames in the output. For example:. Here's how you can verify that:. So the output of the cat command confirms the presence of a newline character between the file names.

But as you might already know, the newline character can be part of a file name as well. Well, you'll be glad to know that grep provides a command-line option -Z that makes sure filenames are followed by a NULL character and not a newline.

Grep is the Linux administrator's swiss army knife when it comes to debugging errors in services. Most Linux services have log files, where they are reporting errors to. These log files can be huge and grep is a versatile and fast command to search for e.

Search for connections related to a specific email address, here ' [email protected] ' in the mail. To continuously monitor a log file for connections for this email address, combine tail and grep commands like this:. In our second GREP command tutorial, you can find even more examples of how to use this Linux command. I have two files with content.