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How can I trim leading and trailing white space?
...
Probably the best way is to handle the trailing white spaces when you read your data file. If you use read.csv or read.table you can set the parameterstrip.white=TRUE.
If you want to clean strings afterwards you could use one of these functions:
# Returns string without leading white space
trim...
One SVN repository or many?
...e a TAG
Commit messages are easily filtered by path in the repository, so reading only those related to a particular project is a trivial exercise.
Edit: See Blade's response for details on using a single authorization/authentication configuration for SVN.
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How do I read the contents of a Node.js stream into a string variable?
...what do you want me to do?)
The key is to use the data and end events of a Readable Stream. Listen to these events:
stream.on('data', (chunk) => { ... });
stream.on('end', () => { ... });
When you receive the data event, add the new chunk of data to a Buffer created to collect the data.
When ...
How to iterate through all git branches using bash script
...)
return $( test -n "${HIST_DIFF}" )
}
print_different_branches () {
read -r -a ARGS <<< "${@}"
LOCAL=${ARGS[-1]?}
for REMOTE in "${SOME_REMOTE_BRANCHES[@]}"; do
if has_different_history "${LOCAL}" "${REMOTE}"; then
# { echo; echo; get_history_differences "${LOCAL}" "${R...
send/post xml file using curl command line
...ser:pass@myhost:myport/path/of/url
You need to change it a little bit to read from a file:
$ curl -X POST -d @myfilename http://user:pass@myhost:myport/path/of/url
Read the manpage. following an abstract for -d Parameter.
-d/--data
(HTTP) Sends the specified data in a
POST request ...
Autoincrement VersionCode with gradle extra properties
... I used the Manifest file to increase the versionCode, but I would like to read the versionCode from an external file and depending if it is the release flavor or the debug flavor increase the versionCode. I tried the extra properties, but you can't save them, which means that next time I build it I...
How do you get a list of the names of all files present in a directory in Node.js?
...
You can use the fs.readdir or fs.readdirSync methods.
fs.readdir
const testFolder = './tests/';
const fs = require('fs');
fs.readdir(testFolder, (err, files) => {
files.forEach(file => {
console.log(file);
});
});
fs.readdirS...
Web scraping with Python [closed]
... BeautifulSoup
soup = BeautifulSoup(urllib2.urlopen('http://example.com').read())
for row in soup('table', {'class': 'spad'})[0].tbody('tr'):
tds = row('td')
print tds[0].string, tds[1].string
# will print date and sunrise
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How do I use valgrind to find memory leaks?
...etc.
sudo yum install valgrind # RHEL, CentOS, Fedora, etc.
Valgrind is readily usable for C/C++ code, but can even be used for other
languages when configured properly (see this for Python).
To run Valgrind, pass the executable as an argument (along with any
parameters to the program).
valgr...
How to count number of files in each directory?
... the directories and let bash do the rest:
find . -type d -print0 | while read -d '' -r dir; do
files=("$dir"/*)
printf "%5d files in directory %s\n" "${#files[@]}" "$dir"
done
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