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“/usr/bin/ld: cannot find -lz”
I am trying to compile Android source code under Ubuntu 10.04. I get an error saying,
11 Answers
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A numeric string as array key in PHP
... manual:
A key may be either an integer or a string. If a key is the standard representation of an integer, it will be interpreted as such (i.e. "8" will be interpreted as 8, while "08" will be interpreted as "08").
Addendum
Because of the comments below, I thought it would be fun to point ou...
How do I add a password to an OpenSSH private key that was generated without a password?
I generated an OpenSSH private key using puttygen (and exported it in OpenSSH format). How can I put a password on this existing key (I know how to generate a new key with a password)?
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Update git commit author date when amending
...--date parameter to git commit. So, if you want to amend the last commit, and update its author date to the current date and time, you can do:
git commit --amend --date="$(date -R)"
(The -R parameter to date tells it to output the date in RFC 2822 format. This is one of the date formats underst...
List files by last edited date
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You can use:
ls -Rt
where -R means recursive (include subdirectories) and -t means "sort by last modification date".
To see a list of files sorted by date modified, use:
ls -l -Rt
An alias can also be created to achieve this:
alias lt='ls -lht'
lt
Where -h gives a more readable output....
SQL query to group by day
I want to list all sales, and group the sum by day.
8 Answers
8
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When converting a project to use ARC what does “switch case is in protected scope” mean?
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The braces help the compiler understand scope. I know GCC used to issue a warning if you declared a new variable at the first line of a case statement without the braces, and the WWDC 2011 video on ARC mentions something about enclosing cases in braces. If you ...
Postgres NOT in array
I'm using Postgres' native array type, and trying to find the records where the ID is not in the array recipient IDs.
7 An...
Fixed Table Cell Width
... the table-layout:fixed style on the <table> or the tables css class and set the overflow style for the cells
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/col
<table class="fixed">
<col width="20px" />
<col width="30px" />
<col width="40px" />...
Cannot kill Python script with Ctrl-C
...thread, but because your threads aren't in daemon mode, they keep running, and that keeps the process alive. We can make them daemons:
f = FirstThread()
f.daemon = True
f.start()
s = SecondThread()
s.daemon = True
s.start()
But then there's another problem - once the main thread has started your ...