IO Performance measurement with bonnie++ To have a look at the performance, your storage devices has, bonnie++ is quite well. To write a file of 16 GB and see how fast it is, just do: sudo yum install bonnie++ cd /<destination> sudo bonnie++ -s 16000 Top for MySQL Sometimes it is quite nice to have […]

Search search for string in files recursively grep -R “Suchstring” *  search for string in stdout cat /var/log/syslog | grep ‘ERROR’  count lines in output cat /var/log/syslog | grep ‘ERROR’ -c search for a file recursively find . -iname “settings.py” search and replace string in multiple files (replace bike with car in all html files in […]