10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I need to replace an entire mailx line as follows using sed:
sed -e 's/<line1>/<newline>/g' <filename>
But I am getting comman garbled error since the new line has many special characters. I enclosed allspecial chars in \ but still no use.
Can any one help me?
Please use code... (2 Replies)
Discussion started by: vinodhin4
2 Replies
2. Shell Programming and Scripting
my requirement is,
consider a file output
cat output
blah sdjfhjkd jsdfhjksdh
sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf
hellow there
this doesnt look good
et cetc etc
etcetera
i want to replace a line of line number 4 ("this doesnt look good") with some other line
... (3 Replies)
Discussion started by: vivek d r
3 Replies
3. Shell Programming and Scripting
I'm trying to write a bash script called YN that looks like the following
YN "Specify a question" "doThis" "doThat"
where "doThis" will be executed if the answer is "y", otherwise "doThat".
For example
YN "Do you want to list the file dog?" "ls -al dog" ""
Here's my attempt... (3 Replies)
Discussion started by: LeoKSimon
3 Replies
4. Shell Programming and Scripting
I am using ksh, By doing change in .profile as
set -o vi
my updown and history does not work.
Also I can not edit command line on prompt using vi command.
My TERM is vt100.
What is wrong here ?
Thanks.
:cool: (3 Replies)
Discussion started by: ekb
3 Replies
5. Shell Programming and Scripting
i am using a newprocess, but i forgot the key point
Changed subject. See post below from Neo (2 Replies)
Discussion started by: Maryeveryday
2 Replies
6. Shell Programming and Scripting
I want to replace one line from my configuration file with the new settings.
The file Name: /etc/httpd/conf/httpd.conf
The following line should be replaced with the line mentioned below.
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "\"%h\"... (3 Replies)
Discussion started by: shantanuo
3 Replies
7. Shell Programming and Scripting
Hey guys, I have a file that I've slowly been awking, seding, and greping for data entry. I am down to pull the addresses out to insert them into an excel file. Each address is a few lines, but i want to put a semicolon delimiter in between each address so I can export the text file into excel and... (6 Replies)
Discussion started by: Cocoabean
6 Replies
8. Shell Programming and Scripting
I have a perl function in my script that needs to replace an entire line in a file
sub changestate {
my $base = ();
my @base = ();
open(BASE, $file) || die("Could not open file!");
@base=<BASE>;
close (BASE);
foreach $base(@base)
{
if($base =~... (1 Reply)
Discussion started by: insania
1 Replies
9. Shell Programming and Scripting
I need to determine what processes are running at certain times of the day. I have a script that issues the /usr/ucb/ps aux command and captures it to a file.
I want to see the cpu usage and memory usage.
This command lops off the end of the of the display line so I can't see the entire... (2 Replies)
Discussion started by: MizzGail
2 Replies
10. UNIX for Dummies Questions & Answers
Dear Techs,
In the past on a different box (HP) I use to be able to complete something I was typing by entering a portion of the filename in the pwd and I would hit the Esc key and it would match the rest of the filename. I did this without understanding how it was setup.
Now I am on a new... (1 Reply)
Discussion started by: jxh461
1 Replies
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 v5.8.0 2001-05-27 Char(3)
