Get the size of the folders in any directory
du -sh folder_location/*
Get the size of folders in the current directory
sudo du -chax --max-depth=1 . | grep -E "M|G"
Search for content of a file from the command line
grep [--include=file_pattern.extension] -rnwl "matching pattern" http://stackoverflow.com/questions/16956810/finding-all-files-containing-a-text-string-on-linux
Create a new SVN Repo
sudo svnadmin create /svn/repos/repo_name sudo chown -R www-data:www-data /svn/repos/repo_name
Remove Directory and Contents
rm -r mydir
List CPU Usage of running processes
top
Get Wireless Signal Information
iwconfig
will save in /tmp/file_list_$FOLDER an alphabetically ordered list of all the files inside $FOLDER, complete with the corresponding sub-folders
find $FOLDER -type f | cut -d/ -f2- | sort > /tmp/file_list_$FOLDER
Display all processes accessing a folder or drive (source)
sudo fuser -mv /folder
zpool change mount location (source)
zfs set mountpoint=/myspecialfolder mypool
lsof command to get the process ID of the process holding the lock files (source)
sudo lsof /var/lib/dpkg/lock sudo lsof /var/lib/apt/lists/lock sudo lsof /var/cache/apt/archives/lock
Get all processes running “apt” and kill those processes (source)
ps aux | grep -i apt sudo kill -9 <process_id>