How to "grep" out specific line ranges of a file

Posted by Mike on Stack Overflow See other posts from Stack Overflow or by Mike
Published on 2010-05-26T15:09:59Z Indexed on 2010/05/26 15:21 UTC
Read the original article Hit count: 119

Filed under:

command-line

|

grep

There are often times I'll grep -l whatev file to find what I'm looking for. Say the output is

1234: whatev 1
5555: whatev 2
6643: whatev 3

If I want to then just extract the lines between 1234 and 5555, is there a tool to do that? For static files I have a script that does wc -l of the file and then does the math to split it out with tail & head but that doesn't work out so well with log files that are constantly being written to.

© Stack Overflow or respective owner

Related posts about command-line

WMI permissions: Select CommandLine, ProcessId FROM Win32_Process returns no data for CommandLine

as seen on Server Fault - Search for 'Server Fault'
Hi all, I am gathering performance data via WMI and would like to avoid having to use an account in the Administrators group for this purpose. The target machine is running Windows Server 2003 with the latest SP/updates. I've done what I believe to be the appropriate configuration to allow our user… >>> More
WMI permissions: Select CommandLine, ProcessId FROM Win32_Process returns no data for CommandLine

as seen on Server Fault - Search for 'Server Fault'
I am gathering performance data via WMI and would like to avoid having to use an account in the Administrators group for this purpose. The target machine is running Windows Server 2003 with the latest SP/updates. I've done what I believe to be the appropriate configuration to allow our user access… >>> More
Java 1.5 Command Line Password Masking

as seen on Stack Overflow - Search for 'Stack Overflow'
All, Our server is running Java 1.5 and I am having difficulty trying to mask user input from the command line. I am executing a jar file (java -jar my.jar) and am working through command line prompts via printlns. I cannot use Java Console. Thanks >>> More
Modifying AD Schema permissions from the command line

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Recently while making some changes for a client, I accidently dug myself into a pretty deep hole. I was trying to explicitly deny a certain user from reading a few group policies including the Default Domain Policy. When I went in to make the change I accidently denied Authenticated Users rather… >>> More
Ask the Readers: Do You Use the Command Line?

as seen on How to geek - Search for 'How to geek'
Most people have heard of it but not everyone is familiar or comfortable with how to use this bastion of geekdom. This week we would like to know if you use the command line or not. The command line…the bastion of ultimate geekery in many peoples’ eyes. You often hear people referring to doing… >>> More

Related posts about grep

grep is inconsistently defaulting to grep -P?

as seen on Server Fault - Search for 'Server Fault'
I have a script that does some housekeeping that works perfectly well when invoked from an interactive shell, but did nothing when invoked by cron. To troubleshoot this I started a shell with a 'blank' environment with the command: env -i /bin/bash --noprofile --norc Using this blank env I've dug… >>> More
grep pattern interpretted differently in 2 different systems with same grep version

as seen on Server Fault - Search for 'Server Fault'
We manufacture a linux appliance for data centers, and all are running fedora installed from the same kickstart process. There are different hardware versions, some with IDE hard drives and some SCSI, so the filesystems may be at /dev/sdaN or /dev/hdaN. We have a web interface into these appliances… >>> More
grep --exclude/--include syntax (do not grep through certain files)

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm looking for the string "foo=" (without quotes) in text files in a directory tree. It's on a common Linux machine, I have bash shell: grep -ircl "foo=" * In the directories are also many binary files which match "foo=". As these results are not relevant and slow down the search, I want grep… >>> More
Grep failing with Emacs (windows), and GnuWin32 Grep

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I've downloaded and installed the GnuWin32 tools, and added the grep executables to the Emacs bin. I've also, for what its worth, added the GnuWin32 bin folder to my Path variable. Problem is though, when I try and run with suggested grep commands, I always get: Grep exited abnormally with… >>> More
How to grep a line start with "*" using grep

as seen on Super User - Search for 'Super User'
Hi, How can I use 'grep' to get lines start with '* ' in my file? I tried grep "" myfile I tried grep " " myfile but returns all the lines of my file. Thank you. >>> More