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How to create a hex dump of file containing only the hex characters without spaces in bash?
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xxd -p file
Or if you want it all on a single line:
xxd -p file | tr -d '\n'
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Shallow copy of a Map in Java
...rstand it, there are a couple of ways (maybe others as well) to create a shallow copy of a Map in Java:
3 Answers
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How to open a file for both reading and writing?
...Note that the documentation for a states 'on some Unix systems, means that all writes append to the end of the file regardless of the current seek position'. In this case the f.seek(0) won't work as expected. I just fell foul of this on Linux.
– Graeme
Jun 25 '...
how can I see what ports mongo is listening on from mongo shell?
...f (see Derick's answer below) or netstat -an to view what a process is actually doing. However, assuming you only have access to the mongo shell (which your question title implies), then you can run the serverCmdLineOpts() command. That output will give you all the arguments passed on the command ...
What is the “realm” in basic authentication
...ed by HTTP/1.1)
The realm attribute (case-insensitive) is required for all
authentication schemes which issue a challenge. The realm value
(case-sensitive), in combination with the canonical root URL of the
server being accessed, defines the protection space. These realms
allow the prote...
How do you turn off version control in android studio?
...I can't seem to turn off, or get out of version control to use the IDE normally again.
5 Answers
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How to read file contents into a variable in a batch file?
...variable – just like any other environment variable – it is one, after all:
%Build%
So to check for existence:
if exist \\fileserver\myapp\releasedocs\%Build%.doc ...
Although it may well be that no UNC paths are allowed there. Can't test this right now but keep this in mind.
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Difference between \A \z and ^ $ in Ruby regular expressions
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@Ragmaanir is right, it should be with small letter \z instead of \Z!
– Petr
Aug 22 '12 at 10:35
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Timeout a command in bash without unnecessary delay
...y, Bash does not support floating point arithmetic (sleep does),
therefore all delay/time values must be integers.
EOF
}
# Options.
while getopts ":t:i:d:" option; do
case "$option" in
t) timeout=$OPTARG ;;
i) interval=$OPTARG ;;
d) delay=$OPTARG ;;
*) printUsage...
How to convert a boolean array to an int array
...veryone for you help!....although the answer was right in my question, i really liked getting the variety of answers and seeing all the different ways to do it. Really opened my mind regarding python.
– Kwolf
Jul 6 '13 at 20:49
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