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What linux shell command returns a part of a string? [duplicate]
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In bash you can try this:
stringZ=abcABC123ABCabc
# 0123456789.....
# 0-based indexing.
echo ${stringZ:0:2} # prints ab
More samples in The Linux Documentation Project
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HTML5: number input type that takes only integers?
... This is important to accept float numbers and repeat . only once, e.g. 123.556 can be writen.
– Tarek Kalaji
Jan 28 '17 at 15:54
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How can I close a buffer without closing the window?
...r, it led me to the final version of the script on: vim.org/scripts/script.php?script_id=1147
– Mosh
Sep 18 '09 at 20:07
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你以为发传单真的这么简单吗?（提升成功率干货） - 更多技术 - 清泛网 - 专...
...的，时而吆喝、时而蹿到你面前，俨然游戏关主。
那么问题来了：面对传单夹击，到底要肿么办？
道德帝一定会说：接一下传单又不会死！人家发传单那么辛苦>>>
曾经姐也秉着自以为体贴的心态，一路上来者不拒接下成沓广...
How to scroll to the bottom of a UITableView on the iPhone before the view appears
...cob Relkin
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How do I use format() on a moment.js duration?
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Use this plugin Moment Duration Format.
Example:
moment.duration(123, "minutes").format("h:mm");
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MySQL “WITH” clause
... a feature request for MySQL since January 2006: http://bugs.mysql.com/bug.php?id=16244
Other RDBMS products that support common table expressions:
Oracle 9i release 2 and later:
http://www.oracle-base.com/articles/misc/with-clause.php
Microsoft SQL Server 2005 and later:
http://msdn.microsoft.com/...
Which terminal command to get just IP address and nothing else?
...ou know the interface, you could use:
~$ ipconfig getifaddr en0
192.168.1.123
which will return just the IP address.
Or you could loop over possible interface names, starting with a suffix, i.e. en:
for NUMBER in $(seq 0 5); do
ip=`ipconfig getifaddr en$NUMBER`
if [ -n "$ip" ]; then
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Deleting DataFrame row in Pandas based on column value
...ndex and inplace. Can anyone explain please ?
– heman123
Nov 9 '18 at 6:05
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Read the docs!
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How to set the authorization header using curl
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@Vixed This question is explicitly not about PHP. [What's wrong with Google's results](s)?
– Oli
Apr 8 '16 at 14:16
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