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Find the extension of a filename in Ruby
...
That's really basic stuff:
irb(main):002:0> accepted_formats = [".txt", ".pdf"]
=> [".txt", ".pdf"]
irb(main):003:0> File.extname("example.pdf") # get the extension
=> ".pdf"
irb(main):004:0> accepted_formats.include? File.extname("example.pdf")
=> true
irb(main):005:0> ac...
How to create EditText with cross(x) button at end of it?
... android:padding="5dp">
<EditText
android:id="@+id/calc_txt_Prise"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:layout_marginTop="20dp"
android:textSize="25dp"
an...
How to make an AJAX call without jQuery?
...urned');
}
}
};
xmlhttp.open("GET", "ajax_info.txt", true);
xmlhttp.send();
}
</script>
With jQuery:
$.ajax({
url: "test.html",
context: document.body,
success: function(){
$(this).addClass("done");
}
});
...
How to effectively work with multiple files in Vim
...lso supports tab-completion on any part of the filename. Say, you have foo.txt open in buffer 2, you can type :b 2<Enter> or :b foo.txt or :b oo<Tab><Enter> to edit that file. Yes, the last one would complete 'oo' to 'foo.txt' when you press <Tab>.
– Sus...
How to create a file with a given size in Linux?
...h>
#include <stdlib.h>
int main() {
int fd = creat("/tmp/foo.txt", 0644);
ftruncate(fd, SIZE_IN_BYTES);
close(fd);
return 0;
}
This approach is especially useful to subsequently mmap the file into memory.
use the following command to check that the file has the correct s...
How can I read a large text file line by line using Java?
...
// Open the file
FileInputStream fstream = new FileInputStream("textfile.txt");
BufferedReader br = new BufferedReader(new InputStreamReader(fstream));
String strLine;
//Read File Line By Line
while ((strLine = br.readLine()) != null) {
// Print the content on the console
System.out.printl...
Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it
...Received(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
txt += serialPort1.ReadExisting().ToString();
SetText(txt.ToString());
}
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...
Which comment style should I use in batch files?
...sktop\test.bat') do (
::echo hello>C:\Users\%username%\Desktop\text.txt
)
pause
While this example will work as a comment correctly:
@echo off
for /F "delims=" %%A in ('type C:\Users\%username%\Desktop\test.bat') do (
REM echo hello>C:\Users\%username%\Desktop\text.txt
)
pause
The...
How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?
...t error: 1: Can't create/write to file '/Users/username/tmp/bkptest/people.txt' (Errcode: 13) when executing 'SELECT INTO OUTFILE'
tmp $ chmod a+rwx bkptest/
tmp $ mysqldump -u root -T bkptest bkptest
tmp $ ls bkptest/
people.sql people.txt
tmp $
...
Recursive directory listing in DOS
...uickly to read. I think it is best to pipe the output of this command to a txt file you can read at your own speed. For example (assuming c:\temp directory is created): dir C:\ /s > C:\temp\CDirectoryListing.txt
– Steven Magana-Zook
Jun 5 '13 at 16:49
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