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What is the right way to POST multipart/form-data using curl?
...path requires escaped double quotes
e.g.
curl -v -F 'upload=@\"C:/myfile.txt\"' URL
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Copy all files with a certain extension from all subdirectories
...did it via the --parents argument for cp:
find SOURCEPATH -name filename*.txt -exec cp --parents {} DESTPATH \;
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How to generate a random alpha-numeric string?
...andom number source will exacerbate the situation. ietf.org/rfc/rfc4122.txt
– Somatik
Dec 31 '12 at 11:31
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How do I compile C++ with Clang?
...language of the input files, for example,
$ clang -x c++ some_random_file.txt
This mailing list thread explains the difference between clang and clang++ well: Difference between clang and clang++
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Python serialization - Why pickle?
...that does respect Object programming - different from an output written in txt file or DB.
4 Answers
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emacs/elisp: What is the hash (pound, number sign, octothorp) symbol used for?
...nted is a description (but cannot be read). For example:
#<buffer foo.txt>
It is also used in constructs by the reader to represent circular structures. See the docs for Read Syntax for Circular Objects.
And then you have its use for denoting the base for integers, e.g. #x2c -> 44.
P...
How to evaluate a math expression given in string form?
...getEngineByName("JavaScript") .eval("var f = new java.io.FileWriter('hello.txt'); f.write('UNLIMITED POWER!'); f.close();"); -- will write a file via JavaScript into (by default) the program's current directory
– Boann
Feb 27 '16 at 13:37
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PostgreSQL disable more output
...ut somewhere, regular and errors.
psql db -f sql.sql 2>&1 > log.txt
mind you there can not be spaces between 2>&1
Finally and sometimes most interesting is the fact that you can suppress all output by using &>, for when you want it 'perfectly quiet'
psql db -f sql.sql &am...
How do I use itertools.groupby()?
... x[0] // chunk_size):
yield (g[1] for g in group)
with open('file.txt') as fobj:
for chunk in chunker(fobj):
process(chunk)
Another example of groupby - when the keys are not sorted. In the following example, items in xx are grouped by values in yy. In this case, one set of ...
How to create full compressed tar file using Python?
...directory)
with tarfile.open("save.tar.gz","w:gz"):
for file in ["a.txt","b.log","c.png"]:
tar.add(os.path.basename(file))
its use in tar.gz file compress in directory
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