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Truncate all tables in a MySQL database in one command?
Is there a query (command) to truncate all the tables in a database in one operation? I want to know if I can do this with one single query.
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Converting HTML files to PDF [closed]
I need to automatically generate a PDF file from an exisiting (X)HTML-document. The input files (reports) use a rather simple, table-based layout, so support for really fancy JavaScript/CSS stuff is probably not needed.
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How do I get the find command to print out the file size with the file name?
...ust the h extra from jer.drab.org's reply. saves time converting to MB mentally ;)
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Does a favicon have to be 32x32 or 16x16?
...recommendation should be to provide a 32x32 icon, skipping 16x16 entirely. All current browsers and devices support 32x32 icons. The icon will routinely be upscaled to as much as 192x192 depending on the environment (assuming there are no larger sizes available or the system didn't recognize them). ...
Repeat command automatically in Linux
...ive option makes highlighting "sticky", presenting a
running display of all positions that have ever changed. The -t
or --no-title option turns off the header showing the interval,
command, and current time at the top of the display, as well as the
following blank line.
Linux/Unix ma...
How to remove focus around buttons on click
My buttons all have a highlight around them after I click them. This is in Chrome.
38 Answers
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Android error: Failed to install *.apk on device *: timeout
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Ran in to this problem usually with my Galaxy Tab. Increasing the timeout to 10s seems to have fixed it for now. Thanks!
– Jon Turner
Mar 30 '11 at 22:56
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Assigning default values to shell variables with a single command in bash
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Very close to what you posted, actually:
FOO=${VARIABLE:-default} # If variable not set or null, use default.
Or, which will assign default to VARIABLE as well:
FOO=${VARIABLE:=default} # If variable not set or null, set it to default.
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Javascript switch vs. if…else if…else
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Answering in generalities:
Yes, usually.
See More Info Here
Yes, because each has a different JS processing engine, however, in running a test on the site below, the switch always out performed the if, elseif on a large number of iterations.
Test site
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How can i use iptables on centos 7? [closed]
I installed CentOS 7 with minimal configuration (os + dev tools). I am trying to open 80 port for httpd service, but something wrong with my iptables service ... what's wrong with it? What am I doing wrong?
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