大约有 30,000 项符合查询结果（耗时：0.0414秒） [XML]
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 ...
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> %&...
iReport not starting using JRE 8
...
Timo Giese
5788 bronze badges
answered Oct 2 '14 at 12:24
xtsolerxtsoler
1,61011 gold badge...
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...
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
...
Why use double indirection? or Why use pointers to pointers?
...3
pmgpmg
94.4k1010 gold badges110110 silver badges186186 bronze badges
...
How do you tell i<em>fem> caps lock is on using JavaScript?
...
Mario Petrovic
2,88022 gold badges2020 silver badges4141 bronze badges
answered Dec 8 '08 at 6:30
rajesh pillairajesh ...
cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
... 2nd-level cache: 512-KB, 4-way set associative, 64-byte line size
87h 2nd-level cache: 1-MB, 8-way set associative, 64-byte line size
B0h Instruction TLB: 4-KB Pages, 4-way set associative, 128 entries
B1h Instruction TLB: 2-MB pages, 4-way, 8 entries or 4M pages, 4-way, 4...
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...
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...