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Insert a commit before the root commit in Git?
...nd:
git checkout --orphan newroot
git rm -rf .
git clean -fd
git commit --allow-empty -m 'root commit'
Note that on very old versions of Git that lack the --orphan switch to checkout, you have to replace the first line with this:
git symbolic-ref HEAD refs/heads/newroot
2. Rewrite history to s...
Where can I set environment variables that crontab will use?
...r/bin/ksh /work1/jleffler/bin/Cron/monthly
The scripts in ~/bin/Cron are all links to a single script, 'runcron', which looks like:
: "$Id: runcron.sh,v 2.1 2001/02/27 00:53:22 jleffler Exp $"
#
# Commands to be performed by Cron (no debugging options)
# Set environment -- not ...
List all base classes in a hierarchy of given class?
...ass Foo (whether it is a new-style class or not), how do you generate all the base classes - anywhere in the inheritance hierarchy - it issubclass of?
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libpng warning: iCCP: known incorrect sRGB profile
...geMagick's
convert in.png out.png
To remove the invalid iCCP chunk from all of the PNG files in a folder (directory), you can use mogrify from ImageMagick:
mogrify *.png
This requires that your ImageMagick was built with libpng16. You can easily check it by running:
convert -list format | gre...
How to automatically install Ansible Galaxy roles?
All my Ansible playbooks/roles are checked in to my git repo.
8 Answers
8
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How to permanently disable region-folding in Visual Studio 2008
... folding in visual studio 2008? Some of my colleagues love it, but I personally always want to see all the code, and never want code folded out of sight. I'd like a setting that means my copy of Visual Studio never folds #regions or function bodies.
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Create directories using make file
...ssuming a Unix-like environment.
MKDIR_P = mkdir -p
.PHONY: directories
all: directories program
directories: ${OUT_DIR}
${OUT_DIR}:
${MKDIR_P} ${OUT_DIR}
This would have to be run in the top-level directory - or the definition of ${OUT_DIR} would have to be correct relative to where ...
How does Java Garbage Collection work with Circular References?
... method that prints out a unique id for the object. You'll be able to see all the objects that reference each other get collected.
– Bill the Lizard
Dec 15 '09 at 20:45
4
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postgresql - replace all instances of a string within text field
In postgresql, how do I replace all instances of a string within a database column?
4 Answers
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Postgres and Indexes on Foreign Keys and Primary Keys
Does Postgres automatically put indexes on Foreign Keys and Primary Keys? How can I tell? Is there a command that will return all indexes on a table?
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