Extract sequence blocks


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Extract sequence blocks
# 8  
Old 03-27-2009
perl

Code:
$str="ASDFGHJKLQWERTYUIOPZXCVBNM";
$tmp=reverse $str;
$tmp=~s/(?=(.{6})+$)/_/g;
$tmp=reverse $tmp;
print $tmp;

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Extract distinc sequence of letters

Hallo, I need to extract distinct sequence of letters for example from 136 to 193 Files are quite big, so I would prefer not to use "fold -w1" Thank you very much Input file look like this: 1 cttttacctt catgtgtttt tgcagatatt tgttcataat aacatcttct ttttaagtta 61 ttaaaatctt... (4 Replies)
Discussion started by: kamcamonty
4 Replies

2. Shell Programming and Scripting

Blocks of text in a file - extract when matches...

I sat down yesterday to write this script and have just realised that my methodology is broken........ In essense I have..... ----------------------------------------------------------------- (This line really is in the file) Service ID: 12345 ... (7 Replies)
Discussion started by: Bashingaway
7 Replies

3. Shell Programming and Scripting

Extract sequence from fasta file

Hi, I want to match the sequence id (sub-string of line starting with '>' and extract the information upto next '>' line ). Please help . input > fefrwefrwef X900 AGAGGGAATTGG AGGGGCCTGGAG GGTTCTCTTC > fefrwefrwef X932 AGAGGGAATTGG AGGAGGTGGAG GGTTCTCTTC > fefrwefrwef X937... (2 Replies)
Discussion started by: ritakadm
2 Replies

4. Shell Programming and Scripting

Extract sequences of bytes from binary for differents blocks

Hello to all, I would like to search sequences of bytes inside big binary file. The bin file contains blocks of information, each block begins is estructured as follow: 1- Each block begins with the hex 32 (1 byte) and ends with FF. After the FF of the last block, it follows 33. 2- Next... (59 Replies)
Discussion started by: Ophiuchus
59 Replies

5. Shell Programming and Scripting

Row blocks to column blocks

Hello, Searched for a while and found some "line-to-column" script. My case is similar but with multiple fields each row: S02 Length Per S02 7043 3.864 S02 54477 29.89 S02 104841 57.52 S03 Length Per S03 1150 0.835 S03 1321 0.96 S03 ... (9 Replies)
Discussion started by: yifangt
9 Replies

6. Shell Programming and Scripting

how to split this file into blocks and then send these blocks as input to the tool called Yices?

Hello, I have a file like this: FILE.TXT: (define argc :: int) (assert ( > argc 1)) (assert ( = argc 1)) <check> # (define c :: float) (assert ( > c 0)) (assert ( = c 0)) <check> # now, i want to separate each block('#' is the delimeter), make them separate files, and then send them as... (5 Replies)
Discussion started by: paramad
5 Replies

7. UNIX for Dummies Questions & Answers

Convert 512-blocks to 4k blocks

I'm Unix. I'm looking at "df" on Unix now and below is an example. It's lists the filesystems out in 512-blocks, I need this in 4k blocks. Is there a way to do this in Unix or do I manually convert and how? So for container 1 there is 7,340,032 in size in 512-blocks. What would the 4k block be... (2 Replies)
Discussion started by: rockycj
2 Replies

8. Shell Programming and Scripting

extract blocks of text from a file

Hi, This is part of a large text file I need to separate out. I'd like some help to build a shell script that will extract the text between sets of dashed lines, write that to a new file using the whole or part of the first text string as the new file name, then move on to the next one and... (7 Replies)
Discussion started by: cajunfries
7 Replies

9. Shell Programming and Scripting

Extract Pattern Sequence

Dear Collegues I have to extract Some pattern from raw text file using perl The input will be raw text. Pattern to get - Sequence of Capital Letter Words ( e.g. he is working in Center for Perl Studies. He will come tomorrow...) from thos I have to extract sequences like "Center for Perl... (5 Replies)
Discussion started by: jaganadh
5 Replies

10. Shell Programming and Scripting

How to extract a sequence of n lines from a file

Hi I want to be able to extract a sequence of n lines from a file. ideas, commands and suggestions would be highly appreciated. Thanks (4 Replies)
Discussion started by: 0ktalmagik
4 Replies
Login or Register to Ask a Question
xfs_estimate(8) 					      System Manager's Manual						   xfs_estimate(8)

NAME
xfs_estimate - estimate the space that an XFS filesystem will take SYNOPSIS
xfs_estimate [ -h ] [ -b blocksize ] [ -i logsize ] [ -e logsize ] [ -v ] directory ... xfs_estimate -V DESCRIPTION
For each directory argument, xfs_estimate estimates the space that directory would take if it were copied to an XFS filesystem. xfs_esti- mate does not cross mount points. The following definitions are used: KB = *1024 MB = *1024*1024 GB = *1024*1024*1024 The xfs_estimate options are: -b blocksize Use blocksize instead of the default blocksize of 4096 bytes. The modifier k can be used after the number to indicate multiplica- tion by 1024. For example, xfs_estimate -b 64k / requests an estimate of the space required by the directory / on an XFS filesystem using a blocksize of 64K (65536) bytes. -v Display more information, formatted. -h Display usage message. -i, -e logsize Use logsize instead of the default log size of 1000 blocks. -i refers to an internal log, while -e refers to an external log. The modifiers k or m can be used after the number to indicate multiplication by 1024 or 1048576, respectively. For example, xfs_estimate -i 1m / requests an estimate of the space required by the directory / on an XFS filesystem using an internal log of 1 megabyte. -V Print the version number and exits. EXAMPLES
% xfs_estimate -e 10m /var/tmp /var/tmp will take about 4.2 megabytes with the external log using 2560 blocks or about 10.0 megabytes % xfs_estimate -v -e 10m /var/tmp directory bsize blocks megabytes logsize /var/tmp 4096 792 4.0MB 10485760 % xfs_estimate -v /var/tmp directory bsize blocks megabytes logsize /var/tmp 4096 3352 14.0MB 10485760 % xfs_estimate /var/tmp /var/tmp will take about 14.0 megabytes xfs_estimate(8)