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live output from subprocess command
...ded a (non-None) value for stdout, and even then, it is only needed if you set stdout=subprocess.PIPE. (Otherwise you can just provide the same argument you provided for stdout, e.g., Popen(..., stdout=stream, stderr=stream).)
The easiest cases (no pipes)
If you redirect nothing (leave all three...
How do I syntax check a Bash script without running it?
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In bash's manpage, under "SHELL BUILTIN COMMANDS / set", -n is documented, and as the beginning of the manpage states, bash interprets all single-character options that set does.
– ephemient
Oct 5 '08 at 20:55
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What does the exclamation mark mean in a Haskell declaration?
... editor after snippets, if snippets enabled
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How to fix Git error: object file is empty?
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I had a similar problem. My laptop ran out of battery during a git operation. Boo.
I didn't have any backups. (N.B. Ubuntu One is not a backup solution for git; it will helpfully overwrite your sane repository with your corrupted one.)
To the git wizards, if this wa...
Bomb dropping algorithm
...tric, except for the weird corners, and even there no blast radius is a subset of another. Note that if this were a line (as Colonel Panic discusses) instead of a closed loop the solution is trivial. The end points must be reduced to 0, and it never harms you to bomb the points adjacent to the en...
Adding git branch on the Bash command prompt
...and-substitution:
Bash:
PS1='[\u@\h \W$(__git_ps1 " (%s)")]\$ '
Zsh:
setopt PROMPT_SUBST ; PS1='[%n@%m %c$(__git_ps1 " (%s)")]\$ '
git < 1.9.3
But note that only git 1.9.3 (May 2014) or later allows you to safely display that branch name(!)
See commit 8976500 by Richard Hansen (richardh...
When do I use the PHP constant “PHP_EOL”?
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Yes, PHP_EOL is ostensibly used to find the newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Windows endline when e...
How to concatenate two strings in C++?
... to which I would like to add the .txt extension so that I can open the file present in the directory.
8 Answers
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How do I undo the most recent local commits in Git?
...o
$ git commit -m "Something terribly misguided" # (1)
$ git reset HEAD~ # (2)
<< edit files as necessary >> # (3)
$ git add ... # (4)
$ git commit -c ORIG_HEAD ...
How to pretty print XML from Java?
...ansformer = TransformerFactory.newInstance().newTransformer();
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
//initialize StreamResult with File object to save to file
StreamResult result = new StreamResult(n...