大约有 30,000 项符合查询结果（耗时：0.0256秒） [XML]
iReport not starting using JRE 8
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Timo Giese
5788 bronze badges
answered Oct 2 '14 at 12:24
xtsolerxtsoler
1,61011 gold badge...
Summarizing multiple columns with dplyr? [duplicate]
...;
#> 1 1 3.08 2.98 2.98 2.91
#> 2 2 3.03 3.04 2.97 2.87
#> 3 3 2.85 2.95 2.95 3.06
I<em>fem> you want to summarize only certain columns, use summarise_at or summarise_i<em>fem> <em>fem>unctions.
Alternatively, the purrrlyr package provides the same <em>fem>unctionality:
library(purrrlyr)
d<em>fem> %&...
Count occurrences o<em>fem> a char in plain text <em>fem>ile
... 0m0.057s
sys 0m0.027s
Time <em>fem>or Vereb answer with echo, cat, tr and <em>bcem> <em>fem>or the same <em>fem>ile:
real 0m0.168s
user 0m0.059s
sys 0m0.115s
Time <em>fem>or Rob Hruska answer with tr, sed and wc <em>fem>or the same <em>fem>ile:
real 0m0.465s
user 0m0.411s
sys 0m0.080s
Time <em>fem>or Je<em>fem>romi answer with <em>fem>grep ...
How to get the process ID to kill a nohup process?
...s id by
`ps aux | grep java`
output
xxxxx 9643 0.0 0.0 14232 968 pts/2
then you can kill the process by typing
sudo kill 9643
or lets say that you need to kill all the java processes then just use
sudo killall java
this command kills all the java processors. you can use thi...
Why use double indirection? or Why use pointers to pointers?
...3
pmgpmg
94.4k1010 gold badges110110 silver badges186186 bronze badges
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Code Gol<em>fem>: Collatz Conjecture
...t; 304 --> 152 --> 76 --> 38 --> 19 --> 58 --> 29 --> 88
; >> --> 44 --> 22 --> 11 --> 34 --> 17 --> 52 --> 26 --> 13 --> 40 --> 20 --> 10
; >> --> 5 --> 16 --> 8 --> 4 --> 2 --> 1
;
; There's even some error checki...
A Regex that will never be matched by anything
...kelier you are to <em>fem>ind one working across all RE engines o<em>fem> interest): r'a\<em>bcem>', looking <em>fem>or a word-boundary immediately surrounded by letters on both sides (variant: nonword characters on both sides).
– Alex Martelli
Dec 4 '09 at 15:17
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How do you tell i<em>fem> caps lock is on using JavaScript?
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Mario Petrovic
2,88022 gold badges2020 silver badges4141 bronze badges
answered Dec 8 '08 at 6:30
rajesh pillairajesh ...
How to only get <em>fem>ile name with Linux '<em>fem>ind'?
...
0m00.93s real 0m00.17s user 0m00.85s system
139
0m00.88s real 0m00.12s user 0m00.75s system
xargs's parallelism also helps.
<em>Fem>unnily enough i cannot explain the last case o<em>fem> xargs without -n1.
It gives the correct result and it's the <em>fem>astest ¯\_(ツ)_/¯
(basename t...
How to return a value <em>fem>rom __init__ in Python?
...a and the other languages that do use this word.
– cs95
Jul 20 '16 at 6:06
1
@Shiva A<em>Fem>AIK, by new...