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Difference between sh and bash
When writing shell programs, we often use /bin/sh and /bin/bash . I usually use bash , but I don't know what's the difference between them.
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@UniqueConstraint and @Column(unique = true) in hibernate annotation
What is difference between @UniqueConstraint and @Column(unique = true) ?
4 Answers
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What's the difference of “./configure” option “--build”, “--host” and “--target”?
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As noted in this blog post and alluded to in the GCC Configure Terms, --target only applies when you are compiling toolchains. When you are doing normal cross-compilation of a library or binary you use
--build=the architecture of the build machine
--hos...
decorators in the python standard lib (@deprecated specifically)
...r('always', DeprecationWarning) # turn off filter
warnings.warn("Call to deprecated function {}.".format(func.__name__),
category=DeprecationWarning,
stacklevel=2)
warnings.simplefilter('default', DeprecationWarning) # reset filter
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How to use “raise” keyword in Python [duplicate]
I have read the official definition of "raise", but I still don't quite understand what it does.
6 Answers
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Gradle, “sourceCompatibility” vs “targetCompatibility”?
What is the relationship/difference between sourceCompatibility and targetCompatibility ? What happens when they are set to different values?
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Batch file. Delete all files and folders in a directory
I want to have a batch file that will delete all the folders and files in my cache folder for my wireless toolkit.
15 Answe...
Facebook Open Graph not clearing cache
...fresh even if you delete the thumnail/image from your server. But Facebook allows you to refresh by using fbrefresh
I hope this helps.
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Authorize Attribute with Multiple Roles
I would like to add Authorization to a controller, for multiple Roles at once.
5 Answers
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MySQL Insert into multiple tables? (Database normalization?)
... at LAST_INSERT_ID() to reuse autoincrement values.
Edit: you said "After all this time trying to figure it out, it still doesn't work. Can't I simply put the just generated ID in a $var and put that $var in all the MySQL commands?"
Let me elaborate: there are 3 possible ways here:
In the code y...