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Change multiple files
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Better yet:
for i in xa*; do
sed -i 's/asd/dfg/g' $i
done
because nobody knows how many files are there, and it's easy to break command line limits.
Here's what happens when there are too many files:
# grep -c aaa *
-bash: /bin/grep: Argu...
Gray out image with CSS?
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Good ol' internet explorer. You can do more with the filter attribute; as it uses DirectDraw to do the rendering. But, then it only works on IE
– user19302
Nov 13 '08 at 4:55
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'innerText' works in IE, but not in Firefox
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Firefox uses the W3C-compliant textContent property.
I'd guess Safari and Opera also support this property.
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lexers vs parsers
Are lexers and parsers really that different in theory?
5 Answers
5
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How to initialize const member variable in a class?
...iable is referenced. The value assigned cannot be modified during program execution.
Bjarne Stroustrup's explanation sums it up briefly:
A class is typically declared in a header file and a header file is typically included into many translation units. However, to avoid complicated linker rules...
Node.js check if file exists
How do i check the existence of a file ?
17 Answers
17
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Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
...ld be to hardcode something like #!/usr/bin/python; that's ok, but less flexible.
In Unix, an executable file that's meant to be interpreted can indicate what interpreter to use by having a #! at the start of the first line, followed by the interpreter (and any flags it may need).
If you're talkin...
How to merge YAML arrays?
...-ci.yml (to answer @rink.attendant.6 comment on the question).
Working example that we use to support requirements.txt having private repos from gitlab:
.pip_git: &pip_git
- git config --global url."https://gitlab-ci-token:${CI_JOB_TOKEN}@gitlab.com".insteadOf "ssh://git@gitlab.com"
- mkdir ...
How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
How to overload the operator++ in two different ways for postfix a++ and prefix ++a ?
5 Answers
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Is there a way to take a screenshot using Java and save it to some sort of image?
... not, you can actually use java.awt.Robot to "create an image containing pixels read from the screen." You can then write that image to a file on disk.
I just tried it, and the whole thing ends up like:
Rectangle screenRect = new Rectangle(Toolkit.getDefaultToolkit().getScreenSize());
BufferedImag...