This question already has answers here: How can I exclude directories from grep -R? (14 answers) Closed 5 years ago. When I grep my Subversion working copy directory, the results include a lot of files from the .svn directories. Is it possible to recursively grep a directory, but exclude all results from .svn directories? 11 … Read more
I want to run ‘make install’ so I have everything I need, but I’d like it to install the things in their own folder as opposed to the system’s /usr/bin etc. is that possible? even if it references tools in the /usr/bin etc.? 7 Answers 7
I want to remove some n lines from the end of a file. Can this be done using sed? For example, to remove lines from 2 to 4, I can use $ sed ‘2,4d’ file But I don’t know the line numbers. I can delete the last line using $sed $d file but I want … Read more
For testing purposes I have to generate a file of a certain size (to test an upload limit). What is a command to create a file of a certain size on Linux? 13 Answers 13
I am trying to compile Android source code under Ubuntu 10.04. I get an error saying, /usr/bin/ld: cannot find -lz Can you please tell me how can I fix it? What does cannot find -lz mean? Here’s the full error message: external/qemu/Makefile.android:1101: warning: overriding commands for target `external/qemu/android/avd/hw-config-defs.h’ external/qemu/Makefile.android:933: warning: ignoring old commands for target … Read more
I have a shell script that runs on Linux and uses this call to get yesterday’s date in YYYY-MM-DD format: date -d “1 day ago” ‘+%Y-%m-%d’ It works most of the time, but when the script ran yesterday morning at 2013-03-11 0:35 CDT it returned “2013-03-09” instead of “2013-03-10”. Presumably daylight saving time (which started … Read more
One of the missions of an export tool I have in my application, is to clean all .svn directories from my application directory tree. I am looking for a recursive command in the Linux shell that will traverse the entire tree and delete the .svn files. I am not using export, as this script will … Read more
I had Screen running inside an SSH session. Terminal froze. After restarting Terminal, that Screen session still thinks it’s attached. Maybe it is. Perhaps I don’t really know what that means. I’d like to attach to that Screen session from a fresh SSH login. I do not want to kill that Screen session as important … Read more
when I run ps -aux command on my linux server, to which I connected using putty, few processes are too long to fit in my current window width. Is there an alternative? — Update — I am sorry for downgrading,I thought others won’t find the answer useful too, so I downgraded. Here is the info … Read more
Is something like this: cat “Some text here.” > myfile.txt Possible? Such that the contents of myfile.txt would now be overwritten to: Some text here. This doesn’t work for me, but also doesn’t throw any errors. Specifically interested in a cat-based solution (not vim/vi/emacs, etc.). All examples online show cat used in conjunction with file … Read more
