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What linux shell command returns a part of a string? [duplicate]
... use. -f changes it from counting characters to counting fields, delimited by TAB by default or by any character you specify following -d. So to get your input string up until but not including the first slash (exactly what I wanted), you can do: cut -d/ -f-1, which can be read as "cut on substrings...
Declaring a default constraint when creating a table
I am creating a new table in Microsoft SQL server 2000 by writing the code instead of using the GUI, I am trying to learn how to do it "the manual way".
...
What is the volatile keyword useful for?
...atile value and continues if it is true. The condition can be set to false by calling a "stop" method. The loop sees false and terminates when it tests the value after the stop method completes execution.
The book "Java Concurrency in Practice," which I highly recommend, gives a good explanation of...
JavaScript closures vs. anonymous functions
...is the function referenced? The global scope.
Hence i is not closed over by f.
Hence setTimeout is not closed over by f.
Hence console is not closed over by f.
Thus the function f is not a closure.
For g:
List the variables:
console is a free variable.
i2 is a free variable.
Find the pare...
What are the differences between .so and .dylib on osx?
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The Mach-O object file format used by Mac OS X for executables and libraries distinguishes between shared libraries and dynamically loaded modules. Use otool -hv some_file to see the filetype of some_file.
Mach-O shared libraries have the file type MH_DYLIB a...
Remove large .pack file created by git
...nt of git, is that even if you delete something, you can still get it back by accessing the history.
What you are looking to do is called rewriting history, and it involved the git filter-branch command.
GitHub has a good explanation of the issue on their site. https://help.github.com/articles/rem...
Rebasing and what does one mean by rebasing pushed commits
...unstable branch just before merging to master), then rebuild the pu branch by resetting to next, and merging all the topic branches. (Source: Documentation/howto/maintain-git.txt git.kernel.org/?p=git/git.git;a=blob;f=Documentation/howto/… )
– Cascabel
Apr 26...
Getting DOM elements by classname
...re is normalize the class attribute so that even a single class is bounded by spaces, and the complete class list is bounded in spaces. Then append the class we are searching for with a space. This way we are effectively looking for and find only instances of my-class .
Use an xpath selector?
$dom ...
Difference between assertEquals and assertSame in phpunit?
...ly, but according to the docs:
assertSame
Reports an error identified by $message if the two variables $expected and $actual do not have the same type and value."
And as you can see in the example below the above excerpt, they are passing '2204' and 2204, which will fail using assertSame beca...
How to pipe list of files returned by find command to cat to view all the files
...suppressing 'headings'). To absolutely guarantee the file name is printed by grep (even if only one file is found, or the last invocation of grep is only given 1 file name), then add /dev/null to the xargs command line, so that there will always be at least two file names.
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