bits

Linux 20 - Manage Disk Quotas

Sep 1, 2012 · 1 min read · linux

–set up quotas on disk\–edit settings–check quotas–generate reports–hard limits, soft limits Quota: a proportional part or share of a fixed total amount or quantity. - by default it may not be installed - only works on an entire devices - the /home directory can be on a NFS share or a separate HDD as this is th…

Linux 19 - Mounting and Unmounting Filesystems

Aug 25, 2012 · 2 min read · linux

–manual mounting–mounting on bootup–user mountable file systems–automount In order to mount filesystems you must be root unless otherwise specified by /etc/fstab There are two ways of mounting a filsystem via mount via /etc/fstab Mount will mount it once while the system is running but it will not mount it again on th…

Linux 18 - Maintain the Integrity of the Filesystem

Aug 11, 2012 · 2 min read · linux

- check integrity- monitor free space inodes- repair simple problems df ( disk free ) 1) By default it will show in kilobytes2) -h stands for human-readable format3) shows inodes, used and free Inodes–every file on your computer takes an INODE – a bookmark–it's how a file is found–maximum files 459637 files can be cre…

Linux 17 - Create Partitions and Filesystems

Jul 28, 2012 · 4 min read · commands linux

partitioncreate filesystemsmake swap space There are two types of partitions on a block device - primary - extended fdisk Partition table manipulator for Linux fdisk -lList the partition tables for the specified devices and then exit. If no devices are given, those mentioned in /proc/partition…

Linux 16 - Basic File editing with VI

Jul 14, 2012 · 1 min read · commands linux

VI - press I to insert- press O to insert to next line - press :! command to execute a command inside VI- enter numbers and then dd to delete lines - for intance to delete 17 lines type 17 in command mode and then dd- to delete characters instead of dd type x- yy copies the line- A inserts after the …

Linux 15 - Search textfiles with regular expressions

Jun 16, 2012 · 2 min read · linux

grep grep -F (fgrep) grep -E (egrep) regex (grep -R) Grepping involves matching a pattern and printing it on the screen.Per dictionary.com grep is an acronym which stands for:Globally search for the Regular Expression and Print the lines containing matches to it. grep# grep oo file.txtbooks Booksbookdoogy # grep …

Linux 14 - Process Priorites

Jun 9, 2012 · 3 min read · commands linux

niceness explained ps pstree htop nice renice niceExecute programs at a specified priority levelThis allows you to control which processes the kernel should favor when dividing processor time among running programs. Processes with the lowest nice number are executed with the highest priority and vice versa.On most sys…

Linux 13 - Create, Monitor and Kill Processes

Jun 2, 2012 · 2 min read · commands linux

background and foreground persistent processes interact with processes sort running processes in top Background and Foreground# sleep 1000 captures the terminal and sleeps for 1000 sec to run in bacground add & to the end this wil give back control of terminal to access programs from background use jobs commands t…