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git undo all uncommitted or unsaved changes
I'm trying to undo all changes since my last commit. I tried git reset --hard and git reset --hard HEAD after viewing this post . I responds with head is now at 18c3773... but when I look at my local source all the files are still there. What am I missing?
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How can I output leading zeros in Ruby?
I'm outputting a set of numbered files from a Ruby script. The numbers come from incrementing a counter, but to make them sort nicely in the directory, I'd like to use leading zeros in the filenames. In other words
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Using CSS td width absolute, position
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This may not be what you want to hear, but display: table-cell does not respect width and will be collapsed based on the width of the entire table. You can get around this easily just by having a display: block element inside of ...
Exit codes in Python
I got a message saying script xyz.py returned exit code 0 . What does this mean?
13 Answers
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What does it mean by buffer?
I see the word "BUFFER" everywhere, but I am unable to grasp what it exactly is.
8 Answers
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How to ignore a property in class if null, using json.net
I am using Json.NET to serialize a class to JSON.
14 Answers
14
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Python to print out status bar and percentage
To implement a status bar like below:
19 Answers
19
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windbg 备忘Windbg：[||system_index ]|process_index:thread_index>system_index：0，本地活动的用户态调试；1，内核转储文件thread_index：kd，内核...Windbg：
[ ||system_index ] | process_index : thread_index>
system_index：0，本地活动的用户态调试；1，内核转...
Appending a line to a file only if it does not already exist
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Just keep it simple :)
grep + echo should suffice:
grep -qxF 'include "/configs/projectname.conf"' foo.bar || echo 'include "/configs/projectname.conf"' >> foo.bar
-q be quiet
-x match the whole line
-F pattern is a plain string
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Install tkinter for Python
I am trying to import Tkinter . However, I get an error stating that Tkinter has not been installed:
20 Answers
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