Can some body tell me how to print number of line from a particular file, with sed. ?
Input file format
AAAA
BBBB
CCCC
SDFFF
DDDD
DDDD
Command to print line 2 and 3 ?
BBBB
CCCC
And also please tell me how to assign column sum to variable.
I user the following command it... (1 Reply)
Hi,
I want to print only lines in between two strings and not the strings using awk.
Eg:
OUTPUT
top 2
bottom 1
left 0
right 0
page 66
END
I want to print into a new file only
top 2
bottom 1
left 0... (4 Replies)
Ok so I can use awk to match a pattern and print the whole line with print $0. Is there any way to just tell awk to print every line of output when the pattern matches?
I'm having it wait for the word error and then print that entire line. But what I actually need to see is all the following... (9 Replies)
I have a file1.txt
file1.txt
F-120009210","Felix","U-M-F-F-F-","white","yes","no","U-M-F-F-F-","Bristol","RI","true"
F-120009213","Fluffy","U-F-","white","yes","no","M-F-","Warwick","RI","true"
U-120009217","Lity","U-M-","grey","yes","yes","","Fall River","MA","true"... (4 Replies)
I have a output log file, that I want to extract some temperature measurement data.
I want to AWK on the words "show chassis environment" in the original file, and extract that entire line, and then the 3rd to 10th lines after the one I AWK'd, into a seperate output file.
Here is an example... (3 Replies)
im using the code below to monitor a file:
gawk '{
a += gsub("(^| )accepted( |$)", "&")
a += gsub("(^| )open database( |$)", "&")
} END {
for (i in a)
printf("%s=%s\n", i, a)
}' /var/log/syslog
the code is searching the syslog file for the string "accepted" and "open... (2 Replies)
URGENT HELP IS NEEDED!!
I am looking to move matching lines (01 - 07) from File1 and 77 tab the matching string from File2, to File3.txt. I am almost done but
- Currently, script is not printing lines to File3.txt in order.
- Also the matching lines are not moving out of File1.txt
... (1 Reply)
from the CLI on a Mac, if you type networksetup -listallnetworkservices then you get results in a multi-line paragraph that look something like this:
networksetup -listallnetworkservices
An asterisk (*) denotes that a network service is disabled.
Wi-Fi
Display Ethernet
Bluetooth DUN... (7 Replies)
Discussion started by: hungryd
7 Replies
LEARN ABOUT SUSE
pdl::char
Char(3) User Contributed Perl Documentation Char(3)NAME
PDL::Char -- PDL subclass which allows reading and writing of fixed-length character strings as byte PDLs
SYNOPSIS
use PDL;
use PDL::Char;
my $pchar = PDL::Char->new( [['abc', 'def', 'ghi'],['jkl', 'mno', 'pqr']] );
$pchar->setstr(1,0,'foo');
print $pchar; # 'string' bound to "", perl stringify function
# Prints:
# [
# ['abc' 'foo' 'ghi']
# ['jkl' 'mno' 'pqr']
# ]
print $pchar->atstr(2,0);
# Prints:
# ghi
DESCRIPTION
This subclass of PDL allows one to manipulate PDLs of 'byte' type as if they were made of fixed length strings, not just numbers.
This type of behavior is useful when you want to work with charactar grids. The indexing is done on a string level and not a character
level for the 'setstr' and 'atstr' commands.
This module is in particular useful for writing NetCDF files that include character data using the PDL::NetCDF module.
FUNCTIONS
new
Function to create a byte PDL from a string, list of strings, list of list of strings, etc.
# create a new PDL::Char from a perl array of strings
$strpdl = PDL::Char->new( ['abc', 'def', 'ghij'] );
# Convert a PDL of type 'byte' to a PDL::Char
$strpdl1 = PDL::Char->new (sequence (byte, 4, 5)+99);
$pdlchar3d = PDL::Char->new([['abc','def','ghi'],['jkl', 'mno', 'pqr']]);
string
Function to print a character PDL (created by 'char') in a pretty format.
$char = PDL::Char->new( [['abc', 'def', 'ghi'], ['jkl', 'mno', 'pqr']] );
print $char; # 'string' bound to "", perl stringify function
# Prints:
# [
# ['abc' 'def' 'ghi']
# ['jkl' 'mno' 'pqr']
# ]
# 'string' is overloaded to the "" operator, so:
# print $char;
# should have the same effect.
setstr
Function to set one string value in a character PDL. The input position is the position of the string, not a character in the string. The
first dimension is assumed to be the length of the string.
The input string will be null-padded if the string is shorter than the first dimension of the PDL. It will be truncated if it is longer.
$char = PDL::Char->new( [['abc', 'def', 'ghi'], ['jkl', 'mno', 'pqr']] );
$char->setstr(0,1, 'foobar');
print $char; # 'string' bound to "", perl stringify function
# Prints:
# [
# ['abc' 'def' 'ghi']
# ['foo' 'mno' 'pqr']
# ]
$char->setstr(2,1, 'f');
print $char; # 'string' bound to "", perl stringify function
# Prints:
# [
# ['abc' 'def' 'ghi']
# ['foo' 'mno' 'f'] -> note that this 'f' is stored "f "
# ]
atstr
Function to fetch one string value from a PDL::Char type PDL, given a position within the PDL. The input position of the string, not a
character in the string. The length of the input string is the implied first dimension.
$char = PDL::Char->new( [['abc', 'def', 'ghi'], ['jkl', 'mno', 'pqr']] );
print $char->atstr(0,1);
# Prints:
# jkl
perl v5.12.1 2009-10-17 Char(3)