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Shell Programming and Scripting
Swapping or switching 2 lines using sed
Post 302247911 by Franklin52 on Thursday 16th of October 2008 04:30:03 PM
10-16-2008
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How can you swap the first 4 line only, the rest will stay the same.
thanks
#!/bin/sh
line=4
awk -v var="$line" 'NR==var {
s=$0
getline;s=$0"\n"s
getline;print;print s
next
}1' fileko.tx
.
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LEARN ABOUT DEBIAN
dtc_setup_vps_disk
dtc_setup_vps_disks(8) System Manager's Manual dtc_setup_vps_disks(8) NAME
dtc_setup_disk - setup LVM disks for using it as a VM SYNOPSIS
dtc_setup_vps_disk.sh VPS_NUMBER HDD_SIZE SWAP_SIZE [ lvm|loopback ] DESCRIPTION
dtc_setup_vps_disk.sh This shell script is a part of the dtc-xen package that is to be used by the dtc panel to manage a Xen VPS server. This script is used to create partitions to be used by a VPS later on. It will create a normal partition that will be used as a root disk, and a swap partition. dtc_setup_disk is to be used by the dtc-xen SOAP server, but can also be used as a standalone userland tool. If the partition(s) exists, then this script will delete it/them first. OPTIONS
VPS_NUMBER has to be a number between 01 and 19. Let's say the number is 16, and that dtc-xen is configured to use the volume group called lvm1, then this script will create /dev/lvm1/xen16 and /dev/lvm1/xen16swap. HDD_SIZE Size in MB of the VPS partition to create. SWAP_SIZE Size in MB of the VPS swap partition to create. If the dtc-xen SOAP server is used to create the VPS, then it will create a swap partition of the exact same size as the memory. IMAGE_TYPE This parameter can have 2 values: either lvm or loopback. If ommited, then lvm is used. If lvm is used, then this script will create a partition using lvmcreate, otherwise it will create an image file. Both will later be used for the VPS. EXAMPLE
dtc_setup_vps_disk 04 15360 256 lvm This will create 2 LVM partition to be used by the VPS named xen04, the first one being a root partition of 15 GB, and the second one being a swap partition of 256 MB. VERSION
This documentation describes dtc_setup_vps_disk version 0.3.15. See http://www.gplhost.com/software-dtc-xen.html for updates. SEE ALSO
dtc_reinstall_os(8), dtc_kill_vps_disk(8) dtc_setup_vps_disks(8)