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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess
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wait also (optionally) takes the PID of the process to wait for, and with $! you get the PID of the last command launched in background.
Modify the loop to store the PID of each spawned sub-process into an array, and then loop again waiting on each PID.
# ru...
Check whether a string contains a substring
... answered Sep 2 '11 at 13:04
David W.David W.
96.5k3333 gold badges199199 silver badges310310 bronze badges
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Find commit by hash SHA in Git
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There are two ways to do this.
1. providing the SHA of the commit you want to see to git log
git log -p a2c25061
Where -p is short for patch
2. use git show
git show a2c25061
The output for both commands will be:
the commit
the author
the date
the commi...
Create a GUID in Java
What are some of the best ways to create a GUID in Java?
6 Answers
6
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How would you compare jQuery objects?
...nothing is required other than ensuring they are the same length and share identical nodes. Here is a small code snippet. You may even want to convert this into a jquery plugin for your own uses.
jQuery(function($) {
// Two separate jQuery references
var divs = $("div");
var divs2 = $("div"...
Mocking objects with Moq when constructor has parameters
...ndrew needed to test a method in CustomerSyncEngine that only uses ICrmProvider with traditional mocking implementations must be provided for all 3 interfaces whereas an autmocking container would allow you to only provide one.
– Chris Marisic
Oct 14 '14 at 19:...
Why should I implement ICloneable in c#?
...lse about it. This is a very different situation from e.g. IEnumerable or IDisposable; there are many situations where it's useful to accept an IEnumerable without knowing anything other than how to enumerate it.
On the other hand, ICloneable may be useful when applied as a generic constraint alon...
GitHub: What is a “wip” branch?
...articular commit or revert to it and expect working code. Basically, to avoid stashing important changes that may not yet be finished, commit them to a WIP branch to store them away safely.
– Harald Nordgren
Jun 14 '16 at 19:17
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Reading InputStream as UTF-8
...retty sure that form of the constructor won’t raise an exception on invalid input. You need to use the with a CharsetDecoder dec argument. This is same Java design bug that the OutputStreamWriter constructors have: only one of the four actually condescends to tell you when something goes wrong. Y...
What does “%” (percent) do in PowerShell?
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A post PowerShell - Special Characters And Tokens provides description of multiple symbols including %
% (percentage)
1. Shortcut to foreach.
Task: Print all items in a collection.
Solution.
... | % { Write-Host $_ }
2. Remainder of division, same as Mod in VB.
Example:
5 % 2...