When the compiler sees this, it sees " Hello "World"" as three things - a string " Hello ", the token World and an empty string, "". To get it to recognise the middle quotes as part of the string, as opposed to the end/start of the string, you need to escape them with the \ character (just like you use \n and the compiler recognizes you mean a newline, not the letter 'n'):
This User Gave Thanks to JohnGraham For This Post:
I'm not very familiar with the ssh command. When I tried to set a variable and then echo its value on a remote machine via ssh, I found a problem. For example,
$ ITSME=itsme
$ ssh xxx.xxxx.xxx.xxx "ITSME=itsyou; echo $ITSME"
itsme
$ ssh xxx.xxxx.xxx.xxx 'ITSME=itsyou; echo $ITSME'
itsyou
$... (3 Replies)
Hi guys, I have a sed line in double quotes which works fine, but I want it to be in single quotes
here is the sed line
sed "/abc_def/s/\'.*\'/\'\${abc_def}\'/"
can some one give the equivalent to the above script in single quotes
Thanks a ton (5 Replies)
Unix superusers,
I am new to unix but would like to learn more about grep. I am very familiar with regular expressions as i have used them for searching text files in windows based text editors. Since I am not very familiar with Unix, I dont understand when one should use GREP with the... (2 Replies)
Hi,
from my Windows Workstation I can connect with PUTTY to an AIX 6.1 unix server.
On AIX via PUTTY I run DBCA which has a grphical interface.
Then :
#DISPLAY=local_host:0.0 ; export DISPLAY
$(hostname) $(whoami):/appli/oracle/product/10.2.0/db_1/bin#dbca
_X11TransSocketINETConnect()... (12 Replies)
Hello. I'm trying to write a bash script that uses GNU screen and have hit a brick wall that has cost me many hours... (I'm sure it has something to do with quoting/globbing, which is why I post it here)
I can make a script that does the following just fine:
test.sh:
#!/bin/bash
# make... (2 Replies)
Hi,
Trying to change the prompt. I have the following code.
export PS1='
<${USER}@`hostname -s`>$ '
The hostname is not displayed
<abc@`hostname -s`>$ uname -a
AIX xyz 1 6 00F736154C00
<adcwl4h@`hostname -s`>$
If I use double quotes, then the hostname is printed properly but... (3 Replies)
Hello everyone,
I am working on a file with thousands of lines and instead of manually removing them I need a script to remove quotes within quotes. For example a line may have something such as this:
"Hey, I was ready to go on stage or "break a leg", but I failed miserably."
So I need to... (15 Replies)
Hi All,
I'm unable to load the data using sql loader where there are double quotes within the double quotes As these are optionally enclosed by double quotes.
Sample Data :
"221100",138.00,"D","0019/1477","44012075","49938","49938/15043000","Television - 22" Refurbished - Airwave","Supply... (6 Replies)
Discussion started by: mlavanya
6 Replies
LEARN ABOUT PHP
ltrim
LTRIM(3) 1 LTRIM(3)ltrim - Strip whitespace (or other characters) from the beginning of a stringSYNOPSIS
string ltrim (string $str, [string $character_mask])
DESCRIPTION
Strip whitespace (or other characters) from the beginning of a string.
PARAMETERS
o $str
- The input string.
o $character_mask
- You can also specify the characters you want to strip, by means of the $character_mask parameter. Simply list all characters
that you want to be stripped. With .. you can specify a range of characters.
RETURN VALUES
This function returns a string with whitespace stripped from the beginning of $str. Without the second parameter, ltrim(3) will strip
these characters:
o " " (ASCII
32 ( 0x20)), an ordinary space.
o " " (ASCII
9 ( 0x09)), a tab.
o "
" (ASCII
10 ( 0x0A)), a new line (line feed).
o "
" (ASCII
13 ( 0x0D)), a carriage return.
o "