Category: linux

Giant Java Processes

As we see that the resident memory (RES) got for the java/jvm is 3.9 GB. As we are on an 32-bit system, that is basically pushing the limits of the address space. For this to happen the max heap for the JVM being run should have been set at least 4GB.

development

Exporting Evolution (contacts) Entries

To export all vcards I use exportevolution.py: $ exportevolution.py > /home/oyuksel/junk/alo.vcf $ I am working on a script called splitvcf.py to generate separate vcards. $ splitvcf.py 727 files created. $I’ll put those into a sf project soon.

desktop

Wireless on Dell Latitude D630 with OEL5

I have been referring to linlap for this configuration. The configuration has been made possible via ipw3945 and iwlwifi. To be more precise:

desktop

gawk – use semicolon as delimiter

semicolon (;) is a shell directive.. So you need to escape it with \ awk -F\; ‘{ print $2 }’ file1

linux

gawk – print last field

awk -F: ‘{ print $NF }’ file

linux

The grep OR operator

I keep forgetting this: grep â€œWord\|Crackâ€ ….

linux

Generating Patches for Linux Sources

gendiff is better or diff -uNrp

development

USB TV BOX

Just got a noname MODEL:USB2.OBOX (or 0BOX?) and attached to my D630 running EL5U2 (i386).. Attaching gives Jul 30 13:19:55 localhost kernel: usb 2-1: new high speed USB device using ehci_hcd and address 7Jul 30 13:19:55 localhost kernel: usb 2-1: configuration #1 chosen from 1 choice in messages and got a brand new Bus 002…

A basic LVM Setup

# fdisk -l Disk /dev/hda: 4294 MB, 4294967296 bytes255 heads, 63 sectors/track, 522 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System/dev/hda1 * 1 13 104391 83 Linux/dev/hda2 14 522 4088542+ 8e Linux LVM Disk /dev/hdb: 4294 MB, 4294967296 bytes255 heads, 63 sectors/track, 522 cylindersUnits = cylinders…

Accessing NTFS Partitions from Linux

This is basically done by two methods:– The NTFS kernel module – The NTFS user space programsfrom the kernel source or http://www.linux-ntfs.org/ The NTFS Kernel ModuleHave a check at the wiki page Youmight find an appropriate prebuilt driver for your current kernelversion. Then you can do normal mounts etc on NTFS partitions. Oneproblem here is…

linux