01-08-2009
oh yeah missed the first ` for the echo..thanks for pointing it out.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I am trying to strip all leading and trailing spaces of a shell variable using either awk or sed or any other utility, however unscuccessful and need your help.
echo $SH_VAR | command_line Syntax.
The SH_VAR contains embedded spaces which needs to be preserved. I need only for the leading and... (6 Replies)
Discussion started by: jerardfjay
6 Replies
2. Solaris
Hi my lovely friends,
Im writing one pgm in which i trying to assign some values like
$var='Jun 6'
but if i do echo of this $var will trim the spaces expect one space.
$echo $var
$Jun 6
But if var='Jun 28', then this will works fine
$echo $var
$Jun 28
this is required to exctract... (2 Replies)
Discussion started by: Lokesha
2 Replies
3. UNIX for Dummies Questions & Answers
when I execute a command in like "run.sh," I can run it two ways:
./run.sh
or
. run.sh
What is the difference? (1 Reply)
Discussion started by: DarkLord
1 Replies
4. Shell Programming and Scripting
Hi All
I want to delete trailing zeros from varible.
ex:
if variable value is 1234.567000 result as 1234.567
if variable has 1234.0000 result as 1234
if variable as abcd.fgh result as abcd.fgh
Can somone give me a solution using awk? (16 Replies)
Discussion started by: Chandu2u
16 Replies
5. Shell Programming and Scripting
I know you can remove trialing slashes using:
#echo "/tmp/one/two/three////" | sed "s,/$,,"
/tmp/one/two/three///
But I want to know how to make it remove all trialing flashes in the front, and in the start, so the end result is:
tmp/one/two/three
Anyone have any idea how to do this... (6 Replies)
Discussion started by: EXT3FSCK
6 Replies
6. Shell Programming and Scripting
I am getting a value from a csv file using CUT command, however the command extracting the records with trailing spaces. I am using the result into a sql session to fetch data, because of the trailing spaces the sql session is unable to fetch any data.
Please let me know, how to remove this... (2 Replies)
Discussion started by: mady135
2 Replies
7. Shell Programming and Scripting
Hi guys,
when I take substring of a particular data using this command
var=substr($0,11,10)
it comes with spaces, when I am trying to trim the spaces it is not allowing me to do that.
Can you please help me out on that.
As I have to reverse the output of the variable also.
---------- Post... (0 Replies)
Discussion started by: manish8484
0 Replies
8. UNIX for Dummies Questions & Answers
I want to keep string/varible length to 10 even its actual length is less than 10(may be no value). so, i want to add trailing spaces to my string. :wall:
"typeset -L10 myvarible" is not working, its saying invalid typset -L option.
Can you please advise. (4 Replies)
Discussion started by: djaks111
4 Replies
9. Shell Programming and Scripting
Hello,
I wondering how I can echo a string without having the trailing whitespace removed.
For example I have a string str="TESTING123 " that I need to hash using sha1. I get the correct answer when I run the line below from the terminal
$ echo -n "TESTING123 " | openssl sha1... (3 Replies)
Discussion started by: colinireland
3 Replies
10. Shell Programming and Scripting
Hi
I have variable named tablename. The value to tablename variable has leading and trailing white spaces. How to remove the leading and training white spaces and write the value of the tablename without space to a file using shell script. ( for e.g. tablename= yyy )
INPUT
... (10 Replies)
Discussion started by: pottic
10 Replies
LEARN ABOUT DEBIAN
text::trim
Text::Trim(3pm) User Contributed Perl Documentation Text::Trim(3pm)
NAME
Text::Trim - remove leading and/or trailing whitespace from strings
VERSION
version 1.02
SYNOPSIS
use Text::Trim;
$text = " important data
";
$data = trim $text;
# now $data contains "important data" and $text is unchanged
# or:
trim $text; # work in-place, $text now contains "important data"
@lines = <STDIN>;
rtrim @lines; # remove trailing whitespace from all lines
# Alternatively:
@lines = rtrim <STDIN>;
# Or even:
while (<STDIN>) {
trim; # Change $_ in place
# ...
}
DESCRIPTION
This module provides functions for removing leading and/or trailing whitespace from strings. It is basically a wrapper around some simple
regexes with a flexible context-based interface.
EXPORTS
All functions are exported by default.
CONTEXT HANDLING
void context
Functions called in void context change their arguments in-place
trim(@strings); # All strings in @strings are trimmed in-place
ltrim($text); # remove leading whitespace on $text
rtrim; # remove trailing whitespace on $_
No changes are made to arguments in non-void contexts.
list context
Values passed in are changed and returned without affecting the originals.
@result = trim(@strings); # @strings is unchanged
@result = rtrim; # @result contains rtrimmed $_
($result) = ltrim(@strings); # like $result = ltrim($strings[0]);
scalar context
As list context but multiple arguments are stringified before being returned. Single arguments are unaffected. This means that under
these circumstances, the value of $" ($LIST_SEPARATOR) is used to join the values. If you don't want this, make sure you only use single
arguments when calling in scalar context.
@strings = (" hello
", " there
");
$trimmed = trim(@strings);
# $trimmed = "hello there"
local $" = ', ';
$trimmed = trim(@strings);
# Now $trimmed = "hello, there"
$trimmed = rtrim;
# $trimmed = $_ minus trailing whitespace
Undefined values
If any of the functions are called with undefined values, the behaviour is in general to pass them through unchanged. When stringifying a
list (calling in scalar context with multiple arguments) undefined elements are excluded, but if all elements are undefined then the return
value is also undefined.
$foo = trim(undef); # $foo is undefined
$foo = trim(undef, undef); # $foo is undefined
@foo = trim(undef, undef); # @foo contains 2 undefined values
trim(@foo) # @foo still contains 2 undefined values
$foo = trim('', undef); # $foo is ''
FUNCTIONS
trim
Removes leading and trailing whitespace from all arguments, or $_ if none are provided.
rtrim
Like trim() but removes only trailing (right) whitespace.
ltrim
Like trim() but removes only leading (left) whitespace.
UNICODE
Because this module is implemented using perl regular expressions, it is capable of recognising and removing unicode whitespace characters
(such as non-breaking spaces) from scalars with the utf8 flag on. See Encode for details about the utf8 flag.
Note that this only applies in the case of perl versions after 5.8.0 or so.
SEE ALSO
Brent B. Powers' String::Strip performs a similar function in XS.
AUTHOR
Matt Lawrence <mattlaw@cpan.org>
ACKNOWLEDGEMENTS
Terrence Brannon <metaperl@gmail.com> for bringing my attention to String::Strip and suggesting documentation changes.
perl v5.10.1 2010-06-07 Text::Trim(3pm)