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Useful GCC flags for C
... answered Aug 3 '10 at 18:58
catphivecatphive
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Pandas conditional creation of a series/dataframe column
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Here's yet another way to skin this cat, using a dictionary to map new values onto the keys in the list:
def map_values(row, values_dict):
return values_dict[row]
values_dict = {'A': 1, 'B': 2, 'C': 3, 'D': 4}
df = pd.DataFrame({'INDICATOR': ['A', 'B', '...
Converting array to list in Java
...and 10.
Truly Immutable list
Java 9:
String[] objects = {"Apple", "Ball", "Cat"};
List<String> objectList = List.of(objects);
Java 10 (Truly Immutable list):
We can use List.of introduced in Java 9. Also other ways:
List.copyOf(Arrays.asList(integers))
Arrays.stream(integers).collect(Collect...
How to determine whether a given Linux is 32 bit or 64 bit?
...ernel
Otherwise, not for the Linux kernel, but for the CPU, you type:
cat /proc/cpuinfo
or:
grep flags /proc/cpuinfo
Under "flags" parameter, you will see various values: see "What do the flags in /proc/cpuinfo mean?"
Among them, one is named lm: Long Mode (x86-64: amd64, also known as Int...
How to show the last queries executed on MySQL?
... remember to clear out your general log table when you are finished: "truncate table mysql.general_log"
– pdwalker
Oct 3 '14 at 5:06
1
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Splitting a string into chunks of a certain size
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@Harry Good catch! This can be remedied with a drop-in ternary expression on the count parameter of substring. Something like: (i * chunkSize + chunkSize <= str.Length) ? chunkSize : str.Length - i * chunkSize. An additional problem ...
Unable to verify leaf signature
...u need is to find a way to authorize it correctly (by setting up CA certificates properly, as other answers have already said).
– Bruno
May 29 '15 at 21:41
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Deleting Files using Git/GitHub
...--cached --ignore-unmatch deletefile.name' --prune-empty --tag-name-filter cat -- --all
git commit -m "Removed deletefile.name"
git push origin master --force
Replace deletefile.name with the file to remove. For in-depth detailed explanation go through the nice article https://help.github.com/arti...
PowerShell: Setting an environment variable for a single command only
...OO=foo BAR=bar your command here
# To use it with dot-env files
env.exe $(cat .env | grep.exe -v '^#') SOME_OTHER_ENV=val your command
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Check to see if python script is running
...le shell script to check it for you using the return code from ps.
ps up `cat /tmp/mydaemon.pid ` >/dev/null && echo "Running" || echo "Not running"
For extra credit, you can use the atexit module to ensure that your program cleans up its pidfile under any circumstances (when killed, e...