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Bash: infinite sleep (infinite blocking)
... documented in a separate answer. To summarize: infinity is converted in C from "string" to a double. Then that double is truncated to the maximum values allowed timespec, which means a very large amount of seconds (architecture-dependant) but, in theory, finite.
– jp48
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Read a variable in bash with a default value
I need to read a value from the terminal in a bash script. I would like to be able to provide a default value that the user can change.
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Appending an element to the end of a list in Scala
... Thanks a lot! That was exactly what I was searching for. I guess from your answer I shouldn't do that though... I'll revise my structure and see what can I do. Thanks again.
– Masiar
Oct 17 '11 at 13:19
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Apply .gitignore on an existing repository already tracking large number of files
...s.
Then run this command:
git rm -r --cached .
This removes everything from the index, then just run:
git add .
Commit it:
git commit -m ".gitignore is now working"
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Simple logical operators in Bash
...nd substitution: there is a command inside the parentheses, and the output from the command is used as part of the command line (after extra expansions unless the substitution is between double quotes, but that's another story).
{ … } braces are like parentheses in that they group commands, but t...
Why can't decimal numbers be represented exactly in binary?
...not exact. All I did was move the decimal one place and suddenly I've gone from Exactopia to Inexactville. Mathematically, there should be no intrinsic difference between the two numbers -- they're just numbers.
Let's step away for a moment from the particulars of bases 10 and 2. Let's ask - in ba...
Print a string as hex bytes?
...somehow.
If your terminal doesn't accept these characters, you can decode from UTF-8 or use the names (so you can paste and run the code along with me):
a_string = (
"\N{CYRILLIC CAPITAL LETTER PE}"
"\N{CYRILLIC SMALL LETTER ER}"
"\N{CYRILLIC SMALL LETTER I}"
"\N{CYRILLIC SMALL LET...
Can't open config file: /usr/local/ssl/openssl.cnf on Windows [duplicate]
...riables.
NOTE: This can happen when using the OpenSSL binary distribution from Shining Light Productions (a compiled + installer version of the official OpenSSL that is free to download & use). This distribution is "semi-officially" linked from OpenSSL's site as a "service primarily for operati...
Why use prefixes on member variables in C++ classes
...ably the most important case is "p" for pointer (because the usage changes from var. to var-> and you have to be much more careful with pointers - NULLs, pointer arithmetic, etc), but all the others are very handy.
For example, you can use the same variable name in multiple ways in a single func...
How to access parameters in a RESTful POST method
...aasvaak - you need to specify where each param is expected to be extracted from. As you have things now Jersey/NetBeans is assuming a form post and extracting the data sent as a FormParm. Annotate each of your method augments with where you want the data from (PathParam, FormParam, CookieParam etc)
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