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Fixed point vs Floating point number
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How to output only captured groups with sed?
...e output as well as specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude zero or more non-digits
i...
Best way to work with dates in Android SQLite [closed]
...le values (
strftime('%Y-%m-%d %H:%M:%f', '2014-03-01 13:01:01.123'),
strftime('%Y-%m-%d %H:%M:%f', '2014-03-01 13:01:01.123'),
strftime('%Y-%m-%d %H:%M:%f', '2014-03-01 13:01:01.123')
);
sqlite> insert into test_table values (
strftime('%Y-...
Remove duplicate dict in list in Python
...that. However, with a few lines of code, you can also do that:
l = [{'a': 123, 'b': 1234},
{'a': 3222, 'b': 1234},
{'a': 123, 'b': 1234}]
seen = set()
new_l = []
for d in l:
t = tuple(d.items())
if t not in seen:
seen.add(t)
new_l.append(d)
print new_l
Ex...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...fy the Oracle Support Hub URL.
#
# Example : COLLECTOR_SUPPORTHUB_URL=https://orasupporthub.company.com:8080/
#------------------------------------------------------------------------------
COLLECTOR_SUPPORTHUB_URL=
#------------------------------------------------------------------------...
What is a 'semantic predicate' in ANTLR?
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std::function and std::bind: what are they, and when should they be used?
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Error when trying to obtain a certificate: The specified item could not be found in the keychain
...k, or the default will include whatever's in the brackets [].
Common Name (CN) should be your private key name (e.g., John Doe Dev Key)
Email Address should be your email address (e.g. thon@example.com)
Everything else should be blank
Verify your CSR
$ openssl req -noout -text -in Certificates.cs...
Hg: How to do a rebase like git's rebase
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20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...stat 这个命令的，如果你要使用它，必须安装一个包名叫 sysstat 的程序包。命令格式常用用法如下：
# vmstat
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu-----
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