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What is your single most favorite command-line trick using Bash? [closed]
...es with suffixes quickly:
cp /home/foo/realllylongname.cpp{,-old}
This expands to:
cp /home/foo/realllylongname.cpp /home/foo/realllylongname.cpp-old
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answered Sep 16 '0...
Rename a dictionary key
...ay to rename a dictionary key, without reassigning its value to a new name and removing the old name key; and without iterating through dict key/value?
In case of OrderedDict, do the same, while keeping that key's position.
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How do I print a list of “Build Settings” in Xcode project?
...little out dated (it was generated with Xcode 4.1). You should run the command suggested by dunedin15.
dunedin15's answer can give inaccurate results for some edge-cases, such as when debugging build settings of a static lib for an Archive build, see Slipp D. Thompson's answer for a more robust outp...
What should my Objective-C singleton look like? [closed]
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@Paul you can override the release method and make it empty. :)
– user142019
Mar 25 '11 at 22:20
4
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Specify sudo password for Ansible
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You can pass variable on the command line via --extra-vars "name=value". Sudo password variable is ansible_sudo_pass. So your command would look like:
ansible-playbook playbook.yml -i inventory.ini --user=username \
--extra-var...
Select random lines from a file
In a Bash script, I want to pick out N random lines from input file and output to another file.
4 Answers
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MongoDB Aggregation: How to get total records count?
... is one of the most commonly asked question to obtain the paginated result and the total number of results simultaneously in single query. I can't explain how I felt when I finally achieved it LOL.
$result = $collection->aggregate(array(
array('$match' => $document),
array('$group' => ...
Hide the cursor of an UITextField
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Simply subclass UITextField and override caretRectForPosition
- (CGRect)caretRectForPosition:(UITextPosition *)position
{
return CGRectZero;
}
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What is Java String interning?
What is String Interning in Java, when I should use it, and why ?
7 Answers
7
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Read Excel File in Python
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A somewhat late answer, but with pandas it is possible to get directly a column of an excel file:
import pandas
import xlrd
df = pandas.read_excel('sample.xls')
#print the column names
print df.columns
#get the values for a given column
values = df['Arm_id']...