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How do I pause my shell script for a second before continuing?
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Use the sleep command.
Example:
sleep .5 # Waits 0.5 second.
sleep 5 # Waits 5 seconds.
sleep 5s # Waits 5 seconds.
sleep 5m # Waits 5 minutes.
sleep 5h # Waits 5 hours.
sleep 5d # Waits 5 days.
One can also employ decimals when specifyin...
Google Chrome Printing Page Breaks
...ke Thanks for answering the problem for me. Not sure why a br doesn't work and a div does, but nonetheless an easy change.
– Jeff Davis
Mar 30 '11 at 21:37
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The performance impact of using instanceof in Java
I am working on an application and one design approach involves extremely heavy use of the instanceof operator. While I know that OO design generally tries to avoid using instanceof , that is a different story and this question is purely related to performance. I was wondering if there is any per...
Android on-screen keyboard auto popping up
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This worked for me. I'm running Android 2.3.4, and developing using <uses-sdk android:minSdkVersion="3" />
– Sandy
Oct 8 '11 at 20:32
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How can I move a single directory from a git repository to a new repository whilst maintaining the h
...plit the repository into new individual repositories, one for each project and then have the master repository contain the projects as submodules. I'd like to do all this whilst maintaining the revision history of the individual projects if possible.
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Most tricky/useful commands for gdb debugger [closed]
Can you post your most tricky and useful commands while you run a debugger like gdb or dbx.
12 Answers
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Check if directory mounted with bash
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Running the mount command without arguments will tell you the current mounts. From a shell script, you can check for the mount point with grep and an if-statement:
if mount | grep /mnt/md0 > /dev/null; then
echo "yay"
else
echo "nay"
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javac not working in windows command prompt
I'm trying to use javac with the windows command prompt, but it's not working.
17 Answers
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Loop through a date range with JavaScript
...dding one day causes the date to roll over to the next month if necessary, and without messing around with milliseconds. Daylight savings aren't an issue either.
var now = new Date();
var daysOfYear = [];
for (var d = new Date(2012, 0, 1); d <= now; d.setDate(d.getDate() + 1)) {
daysOfYear.p...
What are the “loose objects” that the Git GUI refers to?
...GUI , I get a popup message that refers to loose objects . I did git gc and that removed the message.
2 Answers
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