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Convert decimal to hexadecimal in UNIX shell script
In a UNIX shell script, what can I use to convert decimal numbers into hexadecimal? I thought od would do the trick, but it's not realizing I'm feeding it ASCII representations of numbers.
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Can't ignore UserInterfaceState.xcuserstate
...n I try to remove the xcuserstate file it says 'did not match any files'. Whats going on?
– Rob Caraway
Nov 7 '12 at 2:04
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Dump Mongo Collection into JSON format
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Use the -d flag to specify what database to use.
– Reimund
Apr 21 '14 at 14:38
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Why does the order of the loops affect performance when iterating over a 2D array?
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This is a pretty thorough answer; it's what I was taught when dealing with cache misses and memory management.
– Makoto
Mar 30 '12 at 3:40
7
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“Keep Me Logged In” - the best approach
...thing wrong.
There. I said it. Now we can move on to the actual answer.
What's wrong with hashing user data, you ask? Well, it comes down to exposure surface and security through obscurity.
Imagine for a second that you're an attacker. You see a cryptographic cookie set for the remember-me on y...
How to initialize an array in Java?
...ew int[array.length]; and want to set all the values of productArray zero, what should I write? (I think I should write a loop and set all values to zero, is there any better way to do this?)
– Hengameh
Aug 26 '15 at 13:09
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Detecting touch screen devices with Javascript
...s_touch_device() {
return !!('ontouchstart' in window);
}
See article: What's the best way to detect a 'touch screen' device using JavaScript?
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Print new output on same line [duplicate]
... Thanks. Yes very true that print i, will have an inserted space. What would the code be for it behaving like python 2 with comma?
– onxx
Aug 20 '12 at 4:25
2
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Easiest way to check for an index or a key in an array?
...ciative array)
[ ${array[key]+abc} ] && echo "exists"
Basically what ${array[key]+abc} does is
if array[key] is set, return abc
if array[key] is not set, return nothing
References:
See Parameter Expansion in Bash manual and the little note
if the colon is omitted, the operator...
Workflow for statistical analysis and report writing
...come back to a long forgotten project and quickly read load.R and work out what data I need to update, and then look at do.R to work out what analysis was performed.
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