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Delete from the current cursor position to a given line number in vi editor
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213
You could use something like d63G to delete from the current line until line 63.
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How does the getView() method work when creating your own custom adapter?
... layout XML-files and creates different View-objects from its contents.
2: The adapters are built to reuse Views, when a View is scrolled so that is no longer visible, it can be used for one of the new Views appearing. This reused View is the convertView. If this is null it means that there is no...
How to convert an int array to String with toString method in Java [duplicate]
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291
What you want is the Arrays.toString(int[]) method:
import java.util.Arrays;
int[] array = ne...
What do pty and tty mean?
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"tty" originally meant "teletype" and "pty" means "pseudo-teletype".
In UNIX, /dev/tty* is an...
Change a Git remote HEAD to point to something besides master
...stored locally in your local repo, in remotes/<name>/HEAD.
With Git 2.29 (Q4 2020), "git remote set-head(man)" that failed still said something that hints the operation went through, which was misleading.
See commit 5a07c6c (17 Sep 2020) by Christian Schlack (cschlack).
(Merged by Junio C Ha...
Add a CSS border on hover without moving the element [duplicate]
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edited Feb 26 '18 at 21:32
answered Mar 8 '12 at 4:12
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How to detect scroll position of page using jQuery
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325
You can extract the scroll position using jQuery's .scrollTop() method
$(window).scroll(functi...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...since rsyslog v3.
# If you want to use them, switch to compatibility mode 2 by "-c 2"
# See rsyslogd(8) for more details
SYSLOGD_OPTIONS="-d -n"
如果你想测试Rsyslog是否工作的话，可以通过系统内建的logger命令发消息；如果你想测试Rsyslog性能如何的话，可以...
What are the differences among grep, awk & sed? [duplicate]
...lace any occurrence of the characters 'cat' by 'dog'
Awk
$ awk '{print $2}' file.txt
# this will print the second column of file.txt
Basic awk usage:
Compute sum/average/max/min/etc. what ever you may need.
$ cat file.txt
A 10
B 20
C 60
$ awk 'BEGIN {sum=0; count=0; OFS="\t"} {sum+=$2; count++...