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How to get a password from a shell script without echoing
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Here is another way to do it:
#!/bin/bash
# Read Password
echo -n Password:
read -s password
echo
# Run Command
echo $password
The read -s will turn off echo for you. Just replace the echo on the last line with the command you want to run.
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How to get the current branch name in Git?
...h.
If you want to retrieve only the name of the branch you are on, you can do:
git rev-parse --abbrev-ref HEAD
or with Git 2.22 and above:
git branch --show-current
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How to iterate a loop with index and element in Swift
...ated() with a for loop for something similar to the following code, you're doing it wrong:
let list = [Int](1...5)
var arrayOfTuples = [(Int, Int)]()
for (index, element) in list.enumerated() {
arrayOfTuples += [(index, element)]
}
print(arrayOfTuples) // prints [(0, 1), (1, 2), (2, 3), (3, 4...
Create list of single item repeated N times
...peat(0, 10)
repeat(0, 10) # Not a list!!!
The function itertools.repeat doesn't actually create the list, it just creates an object that can be used to create a list if you wish! Let's try that again, but converting to a list:
>>> timeit.timeit('list(itertools.repeat(0, 10))', 'import i...
.bashrc/.profile is not loaded on new tmux session (or window) — why?
When tmux starts or opens a new window, it does not load my .profile or .bashrc . I end up typing . ~/.bashrc every time. Is there a way to make this happen automatically?
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Linux bash: Multiple variable assignment
Does exist in linux bash something similar to the following code in PHP:
5 Answers
5
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Convert data.frame column format from character to factor
...an.r-project.org/manuals.html
R Reference card: http://cran.r-project.org/doc/contrib/Short-refcard.pdf
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How to assign a heredoc value to a variable in Bash?
...ed quotes better with this:
$ read -r -d '' VAR <<'EOF'
abc'asdf"
$(dont-execute-this)
foo"bar"''
EOF
If you don't quote the variable when you echo it, newlines are lost. Quoting it preserves them:
$ echo "$VAR"
abc'asdf"
$(dont-execute-this)
foo"bar"''
If you want to use indentation for...
How to read an external local JSON file in JavaScript?
...ost.
In terms of helping you write code to read JSON, you should read the documentation for jQuery.getJSON():
http://api.jquery.com/jQuery.getJSON/
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What's a reliable way to make an iOS app crash?
...when the user performs a particular action that a real user is unlikely to do accidentally.
18 Answers
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