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Checking Bash exit status of several commands efficiently
... then just do
set -e # DON'T do this. See commentary below.
at the start of the script (but note warning below). Do not bother echoing the error message: let the failing command handle that. In other words, if you do:
#!/bin/sh
set -e # Use caution. eg, don't do this
command1
command...
What is a Memory Heap?
...h malloc) on the heap and then provide the address where this memory chunk starts to the pointer.
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I want my android application to be only run in portrait mode?
... The second option has the horrible side effect that it will restart your activity when started in in Portrait.
– Joakim
Apr 29 '16 at 13:04
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How can Bash execute a command in a different directory context?
...use, and (b) it's not always safe to assume that you can cd back where you started, especially in complex subsystems which may use restrictive permissions internally (see stackoverflow.com/questions/10555284/…).
– geekosaur
May 12 '12 at 19:17
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How to convert a String to its equivalent LINQ Expression Tree?
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@darin, things like starting processes, changing data, etc.
– sisve
May 5 '09 at 9:06
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Java LinkedHashMap get first or last entry
...a.util.Map.Entry;
public class PerformanceTest {
private static long startTime;
private static long endTime;
private static LinkedHashMap<Integer, String> linkedmap;
public static void main(String[] args) {
linkedmap = new LinkedHashMap<Integer, String>();
...
Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
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UPDATE:
Starting end August 2012, the API has been updated to allow you to retrieve user's profile pictures in varying sizes. Add the optional width and height fields as URL parameters:
https://graph.facebook.com/USER_ID/picture?wid...
Why is Swift compile time so slow?
...t's project size based. My project only has 4 swift files and has suddenly started compiling incredibly slow. It was lighting fast yesterday. Can't put my finger on anything I did to my project in particular except add icon and launch images.
– Travis M.
Mar 25...
How to change the value of ${user} variable used in Eclipse templates
...e Source→Generate Element Comment from the context menu, ALT-SHIFT-J, or start a JavaDoc comment. The resulting @author tag should be followed by the warning.
The remaining configuration changes can be performed without Administrator privileges.
Git Global(User) Configuration - Global, or user, ...
Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
...out quoting and with or without -n (columns 1b - 4b)
Notice in column 1a starting at the row labeled "two" that the result indicates that [ is evaluating the contents of the variable as if they were part of the conditional expression (the result matches the assertion implied by the "T" or "F" in t...