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dd: How to calculate optimal blocksize? [closed]
...ock size, I've written the following script that tests writing a 128M test file with dd at a range of different block sizes, from the default of 512 bytes to a maximum of 64M. Be warned, this script uses dd internally, so use with caution.
dd_obs_test.sh:
#!/bin/bash
# Since we're dealing with dd...
Python: split a list based on a condition?
...way to do this?
That code is perfectly readable, and extremely clear!
# files looks like: [ ('file1.jpg', 33L, '.jpg'), ('file2.avi', 999L, '.avi'), ... ]
IMAGE_TYPES = ('.jpg','.jpeg','.gif','.bmp','.png')
images = [f for f in files if f[2].lower() in IMAGE_TYPES]
anims = [f for f in files if f...
How to increase IDE memory limit in IntelliJ IDEA on Mac?
...ase the maximum memory that IDE can use. I set the VMOptions in Info.plist file to be
-Xmx2048m -ea -XX:+HeapDumpOnOutOfMemoryError -Xverify:none -Xbootclasspath/a:../lib/boot.jar
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How to install packages using pip according to the requirements.txt file from a local directory?
...s works for me:
$ pip install -r requirements.txt --no-index --find-links file:///tmp/packages
--no-index - Ignore package index (only looking at --find-links URLs instead).
-f, --find-links <URL> - If a URL or path to an html file, then parse for links to archives.
If a local path or fi...
How to change MySQL data directory?
...mand:
sudo cp -R -p /var/lib/mysql /newpath
edit the MySQL configuration file with the following command:
sudo gedit /etc/mysql/my.cnf # or perhaps /etc/mysql/mysql.conf.d/mysqld.cnf
Look for the entry for datadir, and change the path (which should be /var/lib/mysql) to the new data directory....
Why do you need to put #!/bin/bash at the beginning of a script file?
...es called "hash".
PPS:
Remember - under *nix, associating a suffix with a file type is merely a convention, not a "rule". An executable can be a binary program, any one of a million script types and other things as well. Hence the need for #!/bin/bash.
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How do you do a simple “chmod +x” from within python?
I want to create a file from within a python script that is executable.
7 Answers
7
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How to encode the filename parameter of Content-Disposition header in HTTP?
...that Firefox (versions 4-9 inclusive) break if there is a comma (,) in the filename, e.g. Content-Disposition: filename="foo, bar.pdf". The result is that firefox downloads the file correctly but keeps the .part extension (e.g foo,bar.pdf-1.part). Then, of course the file won't open correctly becaus...
start MySQL server from command line on Mac OS Lion
... For me it ended up being just "mysqld <action>", the file is located at /usr/local/mysql/bin/mysqld
– crobicha
Aug 15 '16 at 17:22
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Ruby: How to post a file via HTTP as multipart/form-data?
...HMTL form posted from a browser. Specifically, post some text fields and a file field.
12 Answers
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