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Extracting lines after nth LINE from an output

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# 1  
Old 04-21-2012
Question Extracting lines after nth LINE from an output
Hi all,

Here is my problem for which i am breaking my head for past three days..

I have parted command output as follows..
Code:

Model: ATA WDC WD5000AAKS-0 (scsi)
Disk /dev/sdb: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type     File system  Flags
 1      32.3kB  65.5GB  65.5GB  primary  ext3         boot 
 2      65.5GB  67.7GB  2147MB  primary  linux-swap        
 3      67.7GB  500GB   432GB   primary  ext3              

Information: Don't forget to update /etc/fstab, if necessary.

I need the lines exactly the partition informations as:

Code:
1      32.3kB  65.5GB  65.5GB  primary  ext3         boot 
2      65.5GB  67.7GB  2147MB  primary  linux-swap        
3      67.7GB  500GB   432GB   primary  ext3

How can i get that one.. Smilie Someone please help me out.....

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Mod Comment Welcome to the UNIX and Linux Forums. Please use code tags. Video tutorial on how to use them
Last edited by Scrutinizer; 04-21-2012 at 07:48 AM..
# 2  
Old 04-21-2012
Code:
# awk ' $1 ~ /^[0-9]/' file
 1      32.3kB  65.5GB  65.5GB  primary  ext3         boot
 2      65.5GB  67.7GB  2147MB  primary  linux-swap
 3      67.7GB  500GB   432GB   primary  ext3
#

Code:
# cat file
Model: ATA WDC WD5000AAKS-0 (scsi)
Disk /dev/sdb: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type     File system  Flags
 1      32.3kB  65.5GB  65.5GB  primary  ext3         boot
 2      65.5GB  67.7GB  2147MB  primary  linux-swap
 3      67.7GB  500GB   432GB   primary  ext3

Information: Don't forget to update /etc/fstab, if necessary.
#

if output came from another command just pipe it to awk

Edit: or use grep:
Code:
# grep '^.[0-9]' file
 1      32.3kB  65.5GB  65.5GB  primary  ext3         boot
 2      65.5GB  67.7GB  2147MB  primary  linux-swap
 3      67.7GB  500GB   432GB   primary  ext3
#

I forgot about sed:

Code:
$ sed -n '/^.[0-9]/p' file
 1      32.3kB  65.5GB  65.5GB  primary  ext3         boot
 2      65.5GB  67.7GB  2147MB  primary  linux-swap
 3      67.7GB  500GB   432GB   primary  ext3
$

Kind regards,
Last edited by haczyk; 04-21-2012 at 08:32 AM.. Reason: Add grep && sed code
This User Gave Thanks to haczyk For This Post:
selvarajvs
# 3  
Old 04-21-2012
Hi,

you can try this

Code:
cat filename|tail +7|head -3


Code:
grep -v "^$" filename|sed -n '6,8p'

Smilie
This User Gave Thanks to sdebasis For This Post:
selvarajvs
# 4  
Old 04-21-2012
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