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How to delete a specific line in a file?
...ng along the line as it's read. Once that line has been read the cursor is now past it. When you try to write into the file you write where the cursor currently is. By re-opening the file you reset the cursor.
– Waddas
Aug 6 '14 at 20:48
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How do I convert a double into a string in C++?
I need to store a double as a string. I know I can use printf if I wanted to display it, but I just want to store it in a string variable so that I can store it in a map later (as the value , not the key ).
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Using sed to mass rename files
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you've had your sed explanation, now you can use just the shell, no need external commands
for file in F0000*
do
echo mv "$file" "${file/#F0000/F000}"
# ${file/#F0000/F000} means replace the pattern that starts at beginning of string
done
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Get cursor position (in characters) within a text Input field
...n, not field.selection or something. Also, it was possible in IE 7 (don't know if it is still possible in 8+) to select something, and then TAB out of the field without loosing selection. This way, when the text is selected but the field is not focused, document.selection returns zero selection. Tha...
How do I edit /etc/sudoers from a script?
...ow this work i mean isn't the semicolon required after EDITOR='tee -a'. I know that will break the command. EDITOR is a shell variable and visudo is yet another command so here we are passing EDITOR and visudo in same command line. how does that really works ?
– Sagar
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SQL to LINQ Tool [closed]
...t 7/17/2020: I cannot delete this accepted answer. It used to be good, but now it isn't. Beware really old posts, guys. I'm removing the link.
[Linqer] is a SQL to LINQ converter tool. It helps you to learn LINQ and convert your existing SQL statements.
Not every SQL statement can be converted to LI...
c# why can't a nullable int be assigned null as a value [duplicate]
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Now that is nice, that's just a subtle difference but sooo simple! Would +2 if I could (despite it being such a little thing) =)
– Coops
Aug 21 '12 at 13:14
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Getting the Value of a UITextField as keystrokes are entered?
... a charm :) (I can't believe I spent numerous days on this, and to realize now that the solution was much simpler than I'd thought :P)
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Run automatically program on startup under linux ubuntu [closed]
...x /etc/init.d/filename
sudo update-rc.d filename defaults
Script should now start on boot. Note that this method also works with both hard links and symbolic links (ln).
Edit
At this point in the boot process PATH isn't set yet, so it is critical that absolute paths are used throughout. BUT, as p...
How to send HTML-formatted email? [duplicate]
...t the web application sends automatic emails using Windows Task Scheduler. Now I want to send HTML-Formatted email using the following method that I wrote for sending emails.
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