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Validating parameters to a Bash script
...mp;2 "$@"
exit 1
}
[ "$#" -eq 1 ] || die "1 argument required, $# provided"
echo $1 | grep -E -q '^[0-9]+$' || die "Numeric argument required, $1 provided"
while read dir
do
[ -d "$dir" ] || die "Directory $dir does not exist"
rm -rf "$dir"
done <<EOF
~/myfolder1/$1/anotherfolde...
Convert Base64 string to an image file? [duplicate]
.../png;base64, is included in the encoded contents. This will result in invalid image data when the base64 function decodes it. Remove that data in the function before decoding the string, like so.
function base64_to_jpeg($base64_string, $output_file) {
// open the output file for writing
$if...
How to write a UTF-8 file with Java?
...ss an encoding in the constructor. Then you can write your data to that inside a try-with-resources Statement:
try (OutputStreamWriter writer =
new OutputStreamWriter(new FileOutputStream(PROPERTIES_FILE), StandardCharsets.UTF_8))
// do stuff
}
...
Semi-transparent color layer over background-image?
...t a light transparent color "layer" over. Below is what I tried but which did not work. Is there a way to put the colored layer over the background image?
...
How can I distinguish whether Switch,Checkbox Value is changed by user or programmatically (includin
...
someCheckBox.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// you might keep a reference to the CheckBox to avoid this class cast
boolean checked = ((CheckBox)v).isChecked();
setSomeBoolean(checked);
...
How to print out more than 20 items (documents) in MongoDB's shell?
... answered Feb 23 '11 at 17:56
SridharSridhar
1,93011 gold badge1111 silver badges33 bronze badges
...
Android and setting width and height programmatically in dp units
...ula is in the docs. For further reading, go to section 3 of developer.android.com/guide/practices/…
– SK9
Mar 20 '11 at 1:49
35
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Eclipse error “ADB server didn't ACK, failed to start daemon”
...
I met same problem, though I didn't what caused this. Whatever, i find some clues and fixed finally.
When I open SDK and AVD manager, but find the AVD version(2.3.3) is not same with android lib version(2.3). So I create a new AVD with 2.3.
I fixed it b...
How to rollback a specific migration?
...
Another word of warning - don't ever do STEP=-1. I did that once and it went mad, rolling back everything. Not nice! This was Rails 4.2 - I guess it may be fixed by now.
– Dave Hartnoll
Mar 13 '18 at 16:37
...
Find (and kill) process locking port 3000 on Mac
...
Find:
sudo lsof -i :3000
Kill:
kill -9 <PID>
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