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Catching error codes in a shell pipe
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If you really don't want the second command to proceed until the first is known to be successful, then you probably need to use temporary files. The simple version of that is:
tmp=${TMPDIR:-/tmp}/mine.$$
if ./a > $tmp.1
then
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How to create a tag with Javascript?
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FYI, document.head is supported in all major browsers.
– Rob W
Feb 23 '12 at 18:12
30
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How is it possible to declare nothing inside main() in C++ and yet have a working application after
...own in the following question (which I had asked long back):
Is main() really start of a C++ program?
Note that such code is not safe and should be best avoided in general. For example, the std::cout object may not be initialized when print_fibs() is executed, if so then what would std::cout do...
Sending event when AngularJS finished loading
...at's the best way to detect the finish of page loading/bootstrapping, when all directives done compiling/linking.
12 Answer...
linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... prot opt source destination
Chain RH-Firewall-1-INPUT (0 references)
target prot opt source destination
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 ...
Tools for analyzing performance of a Haskell program
...ith +RTS -s
$ time ./A +RTS -s
./A +RTS -s
749700
9,961,432,992 bytes allocated in the heap
2,463,072 bytes copied during GC
29,200 bytes maximum residency (1 sample(s))
187,336 bytes maximum slop
**2 MB** total memory in use (0 MB lost due to fragmentat...
SSRS chart does not show all labels on Horizontal axis
My SSRS report does not show all the labels on the horizontal axis. Please see below.
6 Answers
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How can I make pandas dataframe column headers all lowercase?
I want to make all column headers in my pandas data frame lower case
5 Answers
5
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Can you set a border opacity in CSS?
...wsers do not understand the rgba format and will not display any border at all if this is the entire declaration. The solution is to provide two border declarations. The first with a fake opacity, and the second with the actual. If a browser is capable, it will use the second, if not, it will use th...
How to ignore all hidden directories/files recursively in a git repository?
I'd like to have Git ignore all hidden files and directories.
i.e.
3 Answers
3
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