In bash I need to use some equivalent of double quotes inside double quotes (or the other way around.)I need to run the following statement to get the output of foo and store it in a variable while passing foo the $file which probably contains spaces.
Code:
variable=$(foo "$file")
The problem is that foo might return an empty string and if it does I need to catch it
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I am not sure If anybody has faced this issue, my keyboard is less responsive when pressing the double quote/single quote key, I have to press it twice for it to print the quote( and that too it prints some other data and not exactly a double-quotes). Initially I thought it was issue with my keyboard, but later I see that it is working fine in Windows XP. It looks some kind of setting issue. If you check the below two examples, example a) is the double quote printed in Ubuntu, it doesnt exactly looks like a double-quotes and b) is the one printed in Windows.
View 1 Replies View RelatedI'm trying to write a bash script that has to extract values from a csv file. Problem is there are lines like this:a,b,c,"dd,dd,dd",e,f,gI'm using awk to extract the values but when I try it extract value 4 with awk I get:"ddinstead of:"dd,dd,dd"Does anyone know how to get awk to ignore commas within double quotes?
View 5 Replies View Relatedgrep -e XkbLayout /etc/X11/xorg.conf | grep -v "^#" | awk '{print $3}'
output = "gb"
sometimes= "us"
I wrote the Automatik widget (you can find it at :http://kde-look.org/content/show.php...&PHPSESSID=caeTo improve it, I would like to add this one-line script into a text sensor :
top -b -n 1 | head -12 | tail -6 | sed '/top/d' | awk '{ printf "%-12.12s %-4s %-4s %-3s
" , $12,$9,$10,$2}'
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I am trying to synchronize the content of the directory my_dir/ from /home to /backup. This directory contains a file which name has a double quote in it, such as to"to. Here is my rsync command:
rsync -Cazh /home/my_dir/ /backup/my_dir/
And I get the following message:
rsync: mkstemp "/backup/my_dir/.to"to.d93PZr" failed: Invalid argument (22)
For info, rsync works well when the synchronized filenames contain single quote, parenthesis and space. Thus, why is it bugging with a double quote?
trying to edit a huge configuration filer graphviz that containsIP addresses.unfortunately, some of the IP addresses didn't get parsed right and have only 3 octets. I am trying to use sed to find these 3 octet lines and delete the line entirely.example lines in the file look like this.
"22.210.73" -> "192.168.159";
"22.210.232" -> "22.210.248";
i have tried doing various things but to no avail. i had something that looked like this...
sed -i '/"*.*.*"/d' myfile
We have 'SNOWMAN' UTF-8 character in our files which i need to replace with doublequotes (").The UTF-8 hex value for 'SNOWMAN' is 0xE2 0x98 0x83 (e29883) , I have written the commands like this but it is not working .........sed -i 's/x0xE2 0x98 0x83/"/g' FileName
View 8 Replies View RelatedI know it is pretty trivial but anyway...I have php file that I am trying to read it looks like this
...
add_item_tabulky("Klaun-PF 2011","klaun_pf2011.jpg","","","");
add_item_tabulky("Pras�tko-�ťastn�
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I have a problem with my keyboard. I�m unable to type single or double quotes, at least not the regular sort that you need to write code in almost any programming language ever invented -which makes it pretty useless.A demonstration.Single left and right tilted quotes:Double quotes: m not able to type a single straight quote at all.I just want my keyboard layout to be standard US like everyone elses so I can get on with my work so does anybody know how to just reset it to a normal layout?
View 4 Replies View RelatedI'm really new here this is the first try to get some knowledge here.I have a littele question."echo {1,2}" does expands 1 and 2.so does "echo "`echo {1,2}`"".But when I do it with double quotes which is "echo "{1,2}"" it doesn't expand at all.why does this happen? I have read man for bash but could not get any clue.
Yuki
Code: -- the output i see --
sh-3.2# echo {1,2}
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I converted my programming project over to autotools, which gives me a config.h file with all the cool definitions, like these ones:
Code:
/* Location of data files. */
#define DATADIR "/usr/local/share"
/* Define to the full name of this package. */
#define PACKAGE_NAME "lusus"
And naturally I think this is cool because then I can hardcore these into the binary. To my dismay, however, I discovered that the pre-processor does not do the text-substitution if the macro name is inside another quoted string.
Code:
// Prints out "/usr/local/share/lusus"
std::cout << DATADIR << "/" << PACKAGE_NAME << "
";
[code]....
This seems lame, because then this doesn't work:
Code:
CL_Image leaves_corner_tl(gc, "DATADIR/PACKAGE_NAME/img/leaves_corner_tl.png");
So, am I literally going to have to strcat DATADIR/PACKAGE with the other text every time I want to prefix DATADIR/PACKAGE_NAME onto another string?
The following script will work when I type the path to the file I want to checksum, but not when I drag the file to the terminal because the linux terminal (unlike the Mac) automatically puts quotes around the file path, which causes an error. (Clarification: am referring to gnome-terminal. Thanks, GrapefruiTgirl.) I did not find anything in gconf-editor or anywhere else to alter this behaviour, and my post in Launchpad is unanswered so far. (the script in itself is not very useful, I just stumbled upon this error when experimenting with bash).
So, is there a workaround for stripping the quotes from the input, or can I configure the terminal to not quote the input when I drag a file into it (which I would prefer?)
I am currently logged in from Mac OS, but the question refers to ubuntu karmic with which I dual boot.
After I assign a string to a variable, I know that the print function will remove the single quotes around the value, but is there a way to assign a variable without the quotes around the value? for example:
a = open('/usr/lib', 'r+')
b = f.read()
c = x.replace('.xx','yy')
d = ?
c returns the value with quotes around it print c returns the value without the quotes Is there a way to assign a new variable (d) which will equal c without the quotes? I need a new variable which has the quotes omitted because from there the script will take the value of the last variable (which is a path to a file), and tar up that file. It won't recognize the path to the file if the value has quotes around it.
My laptop's been locking up in Linux (Ubuntu, Backtrack, Puppy) periodically for a while now. When it locked up, it was always immune to the magic of SysRq, which I thought might indicate a hardware problem. It became so bad that I had to stop using the laptop.
Today, when I turned it on and tried to boot into Fedora 12, I got the following error (just once, it just locked up at various points during the splash screen after this once):
double fault: 0000 [#1] SMP
last sysfs file:
CPU 0
odules linked in:
Pid: 1, co m: swapper Not ta nted 2.6.32.11-99.fc 2.x86_64 #VGN-T 250N
RIP: 0010:[<ff
All the seemingly missing letters were really missing, not my typos.
As you can see, kernel version is 2.6.32.11-99.fc12.x86_64 and my laptop is a Sony Vaio TZ 250N (Core 2 Duo ULV 1.2GHZ). Note that with the other remaining kernels from the updates, nothing ever happened other than the locking up. The core temperatures hover pretty high, about 55-60C peak but this is still below the critical temp. Memtest came up clean when the problem first started happening.
Someone know how i can convert from hex string to double in c/c++?? Example 40668472B020C49C is 180.139
reference page: http://babbage.cs.qc.edu/IEEE-754/64bit.html
I need to generate random numbers using /dev/random in C. The numbers should be of type double (64-bit floating point).The functionality should be equal to linux command "od -An -N8 -t fD /dev/random", but written in C.The prototype should be "double drand(void);".
View 7 Replies View Relatedin c/c++, double is usually 8 bytes. It has a 52-bit mantissa (or significand, or base), an 11-bit exponent, and a 1-bit sign. My question is: is the mantissa a 52-bit integer? Or is the decimal point just after the first bit. Meaning: if the mantissa was 1000110011100011 (in binary) would that make the value of the mantissa (assuming the exponent was 0) 1000110011100011, or 1.000110011100011? (in binary)
View 1 Replies View RelatedCode:
int main ()
{
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Here's my code for bubble sort with double type
Code:
#include <stdio.h>
void swap_double( double *a, double *b )
{
double _t = *a;
code....
I want to convert double quote to single quote in a text file. I tried escape characters however no success. Please find details as follows:
-sh-3.00$ sed 's/"/'/g test.txt
sed: -e expression #1, char 7: unterminated `s' command
-sh-3.00$ cat test.txt
"unix"
I want "unix" to be converted to 'unix'
can i get the ocuurance of left click-right click-double click?i need the time of ocurance and the click(left-right-double) that happend.any software?any clue..i need it in linux environment(kde or gnome)
View 14 Replies View RelatedI'm trying to write an extension to PHP which means coding in C. I'm really really rusty at C coding and was never very good at it.
Can anyone propose an efficient, safe, and [hopefully] future-proof way of reversing a double? Keep in mind that it should work on as many systems as possible and on 32- and 64-bit systems (and on ???-bit systems in the future?). Will the size of a 'double' ever change or will it always be 8 bytes?
I've tried this and it doesn't work...the compiler complains about "invalid operands to binary" because I'm trying bitwise shiftw on a non-integer.
Code:
x = (x>>56) |
((x<<40) & 0x00FF000000000000) |
((x<<24) & 0x0000FF0000000000) |
((x<<8) & 0x000000FF00000000) |
[Code]....
I have tryed out this operator on program:
Code:
#include <iostream.h>
#include <iomanip.h>
#include <fstream.h>
ofstream myfile;
[code]...
which definitly is not the same number. I guess somewhere in the convertion from double to char* ("<<") something is not right and what can i do to save these double numbers in an accurate manner in a file?
I have been battling with regular expressions and am a little lost. I want to find all my files that end with .la and have been trying this
Code:
slocate -r .la$
which finds them but also files like mozilla. The escaped full stop seems to be ignored however this works :
Code:
slocate -r \.la$
so why is the double escaping needed ?
My application receiving SIGABRT by saying "smallbin double linked list corrupted". It is developed in C/C++ on Linux RHEL5.4
View 2 Replies View RelatedI was going to file a bug to findutils on gnu.org when I saw a notice that asked me whether I knew the difference between these two commands:find -name *.c and find -name "*.c".I use find command quite often but I don't think these two have any difference.
View 2 Replies View RelatedI exported a spreadsheet file into cvs format.
The cvs file is formatted this way
field1,field2,field3,..etc
I want it to be in a Quote delimited format like so
"field1","field2","field3",..etc
I have the following command, which works fine:ll /backup/PROD |grep PROD_ |awk -F" " '{print "catalog backuppiece /backup/PROD/"$9";"}'The output is:catalog backuppiece /backup/PROD/PROD_29mi42vn_1_1;BUT... I want single quotes in the result. One before /back.. and one before the ;Like this:catalog backuppiece '/backup/PROD/PROD_29mi42vn_1_1';How do I do that? I tried using ' but it does not work.The following command works, but I get an error message, which prevents me from using the command in a bash file:ll /backup/PROD |grep PROD_ |awk -F" " '{print "catalog backuppiece '''/backup/PROD/"$9"''';"}'awk: warning: escape sequence `'' treated as plain `''
View 3 Replies View RelatedI have a 10x2 matrix, I create said matrix and fill it one column with zeros and the other with ones, now when I print the matrix I get this:
column 1:
0,0,0,0,0,0,0,0,1,1
column 2:
1,1,1,1,1,1,1,1,1,1
The first two rows of the second column are being replaced into the last two rows of the first column, now I even checked in visual studio and it works fine there. A friend tried my code and he gets it even worse:
column 1:
0,0,0,0,1,1,1,1,1,1
column 2:
1,1,1,1,1,1,1,1,1,1
As far as I've seen it must be a problem with GCC, unfortunately I need to have this up and running in GCC no matter what.
[Code].....