大约有 48,000 项符合查询结果（耗时：0.0786秒） [XML]
Checking if output of a command contains a certain string in a shell script
...
105
Test the return value of grep:
./somecommand | grep 'string' &> /dev/null
if [ $? == 0...
bash HISTSIZE vs. HISTFILESIZE?
...st: in memory.
Long answer:
All the info above + some examples:
Example 1:
HISTFILESIZE=10 and HISTSIZE=10
You start your session.
Your HISTFILE (file that stores your bash command history), is truncated to contain HISTFILESIZE=10 lines.
You write 50 lines.
At the end of your 50 commands, onl...
Vim Insert Mode on Mac OS X
...
213
If this is as simple a question as it seems, you merely press i.
...
Multiline bash commands in makefile
...
138
You can use backslash for line continuation. However note that the shell receives the whole co...
Recreating a Dictionary from an IEnumerable
...gt; x.Key, x => x.Value);
There's no such thing as an IEnumerable<T1, T2> but a KeyValuePair<TKey, TValue> is fine.
share
|
improve this answer
|
follow
...
Go: panic: runtime error: invalid memory address or nil pointer dereference
...
121
According to the docs for func (*Client) Do:
"An error is returned if caused by client policy...
Remove a character from the end of a variable
...
Use
target=${1%/}
A reference.
share
|
improve this answer
|
follow
|
...
How does the MapReduce sort algorithm work?
...uce sort, except for a custom partitioner that uses a sorted list of N − 1 sampled keys that define the key range for each reduce. In particular, all keys such that sample[i − 1] <= key < sample[i] are sent to reduce i. This guarantees that the output of reduce i are all less than the outp...
How to make a chain of function decorators?
...
17 Answers
17
Active
...
Pandas: Setting no. of max rows
...set_option('display.max_rows', 500)
For older versions of pandas (<=0.11.0) you need to change both display.height and display.max_rows.
pd.set_option('display.height', 500)
pd.set_option('display.max_rows', 500)
See also pd.describe_option('display').
You can set an option only temporarily...