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Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
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edited Dec 22 '14 at 22:36
answered Jan 19 '12 at 2:16
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Check Whether a User Exists
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295
You can also check user by id command.
id -u name gives you the id of that user.
if the user d...
How to redirect output of an entire shell script within the script itself?
... redirection...
{
#...part of script with redirection...
} > file1 2>file2 # ...and others as appropriate...
#...residue of script without redirection...
The braces '{ ... }' provide a unit of I/O redirection. The braces must appear where a command could appear - simplistically, at th...
How to add a delay for a 2 or 3 seconds [closed]
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You could use Thread.Sleep() function, e.g.
int milliseconds = 2000;
Thread.Sleep(milliseconds);
that completely stops the execution of the current thread for 2 seconds.
Probably the most appropriate scenario for Thread.Sleep is when you want to delay the operations in another thread,...
Manipulating an Access database from Java without ODBC
...;/version>
</dependency>
</dependencies>
Option 2: Manually adding the JARs to your project
As mentioned above, UCanAccess requires Jackcess and HSQLDB. Jackcess in turn has its own dependencies. So to use UCanAccess you will need to include the following components:
UCa...
How to use jQuery in chrome extension?
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128
You have to add your jquery script to your chrome-extension project and to the background secti...
jQuery: Best practice to populate drop down?
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edited Dec 2 '17 at 19:40
João Pimentel Ferreira
7,29333 gold badges4040 silver badges5353 bronze badges
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Is there a list of screen resolutions for all Android based phones and tablets? [closed]
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Galaxy Y 320 x 240 ldpi 0.75 120 427 x 320 4:3 1.3333 427 x 320
? 400 x 240 ldpi 0.75 120 533 x 320 5:3 1.6667 ...
How to compare type of an object in Python?
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246
isinstance()
In your case, isinstance("this is a string", str) will return True.
You may al...
How to Rotate a UIImage 90 degrees?
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edited May 19 '16 at 9:42
user2742371
answered Aug 22 '09 at 22:20
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