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Reverting single file in SVN to a particular revision
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svn cat takes a revision arg too!
svn cat -r 175 mydir/myfile > mydir/myfile
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How can I use a file in a command and redirect output to the same file without truncating it?
...e=$(mktemp)
grep -v 'seg[0-9]\{1,\}\.[0-9]\{1\}' file_name > ${tmpfile}
cat ${tmpfile} > file_name
rm -f ${tmpfile}
like that, consider using mktemp to create the tmpfile but note that it's not POSIX.
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Regular Expression For Duplicate Words
...e out how to write a single regular expression that would "match" any duplicate consecutive words such as:
13 Answers
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Java ArrayList copy
... position 5 and 10 from one arraylist to another new arraylist. In my application the range would be much bigger.
– Ashwin
Oct 16 '12 at 9:46
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How can I start an interactive console for Perl?
... so:
perl -de1
Alternatively there's Alexis Sukrieh's Perl Console application, but I haven't used it.
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How can I read command line parameters from an R script?
...d Apr 27 '15 at 13:10
The Unfun Cat
20.5k2222 gold badges8686 silver badges114114 bronze badges
answered Jan 28 '10 at 12:52
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Create a dictionary with list comprehension
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what if I have a case of list of words ['cat','dog','cat'] and I want to make a dict with key as word and value as count? Is there a short efficient syntax for that?
– cryanbhu
Jul 14 '19 at 2:30
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Upgrade python packages from requirements.txt using pip command
...grade
Advanced usage
If the requirements are placed in a non-standard location, send them as arguments:
pip-upgrade path/to/requirements.txt
If you already know what package you want to upgrade, simply send them as arguments:
pip-upgrade -p django -p celery -p dateutil
If you need to upgrad...
How do I change the background color with JavaScript?
...y the server, you would have to poll the server and then change the color accordingly.
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Delete multiple remote branches in git
...igin/ prefix) stored in a text file (one branch name per line), just run:
cat your_file.txt | xargs -I {} git push origin :{}
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