Hi, Im trying to take a database backup. one of the files is 26 GB. I am using cp -pr to create a backup copy of the database. after the copying is complete, if i do du -hrs on the folders i saw a difference of 2GB.
The weird fact is that the BACKUP folder was 2 GB more than the original one!
... (1 Reply)
Hi
I am new to shell scripting.I want to create a batch file which creates a desired number of files with a specific size say 1MB each to consume space.How can i go about it using for loop /any other loop condition using shell script?
Thanks (3 Replies)
Gurus,
I have one file which is having multiple columns and also this file is not always contain the exact columns; sometimes it contains 5 columns or 12 columns. Now, I need to find the difference from that particular file. Here is the sample file:
param1 | 10 | 20 | 30 |
param2 | 10 |... (6 Replies)
Hi,
I am trying to find an alternative way to do tkdiff. In tkdiff the gui compares each line and highlights only the differences.
for eg:
John works at McDonalds s(test)
He was playing guitar tywejk
John works in McDonalds 9908
He was playing guitar
I am... (1 Reply)
Hi,
Could anyone help me to solve this problem?
I have two files "f1" and "f2" having 2 fields in each, a) file size and b) file name. The data are almost same in both the files except for few and new additional lines. Now, I have to find out and print the output as, the difference in the... (3 Replies)
Hi,
I'm having a problem printing two consecutive columns, as I iterate through a large matrix by twenty columns and I was looking for a solution.
My input file looks something like this
1 id1 A1 A2 A3 A4 A5 A6....A20 A21 A22 A23....A4001 A4002
2 id2 B1 B2 B3 B4 B5 B6...
3 id3 ...
4 id4... (8 Replies)
Hey guys I'm new to unix and need help printing files in a specified directory according to size in bytes as well as files with equal bites in alphabetical order
the part i have done so far prints out all files in the directory as well as setting a time limit in which they have been modified
... (2 Replies)
I want to printing into two files under difference situation.
For example, file 1 name.txt
>gma-miR172a Glyma02g28845
>gma-miR1513a-3p Glyma02g15840
>gma-miR166a-5p Glyma02g15840
>gma-miR1530 Glyma02g15130
>gma-miR1507a Glyma02g01841
File 2 a.gff
Glyma01g07930 ... (4 Replies)
Hi , I want to compare first 3 columns of File A and File B and create a new file File C which will have all rows from File B and will include rows that are present in File A and not in File B based on First 3 column comparison.
Thanks in advance for your help.
File A
A,B,C,45,46... (2 Replies)
Hi All,
I have a requirement to compare data column which is the last field in two different files and trigger and alert if the difference is greater than 1 for each row.
File1
Jan Acount1 2014 11223
Feb Account2 2014 2345
Mar Account3 2014 1233
File2
Jan Account1 2014... (1 Reply)
Discussion started by: Naresh Babu
1 Replies
LEARN ABOUT MOJAVE
english5.18
English(3pm) Perl Programmers Reference Guide English(3pm)NAME
English - use nice English (or awk) names for ugly punctuation variables
SYNOPSIS
use English;
use English qw( -no_match_vars ) ; # Avoids regex performance penalty
# in perl 5.16 and earlier
...
if ($ERRNO =~ /denied/) { ... }
DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get
triggered just by accessing them (like $0) will still be affected.
For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be
referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module.
See perlvar for a complete list of these.
PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if
your code is to run on perl 5.18 or earlier.
This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters
in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing
use English qw( -no_match_vars ) ;
. It is especially important to do this in modules to avoid penalizing all applications which use them.
perl v5.18.2 2014-01-06 English(3pm)