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How do you convert a byte array to a hexadecimal string, and vice versa?
..., "01", "02", "03", "04", "05", "06", "07", "08", "09", "0A", "0B", "0C", "0D", "0E", "0F",
"10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "1A", "1B", "1C", "1D", "1E", "1F",
"20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "2A", "2B", "2C", "2D", "2E", "2F",
...
What does the git index contain EXACTLY?
...ommit 3255089, commit abb4bb8, commit c780b9c, commit 3b1d9e0, commit 371ed0d (10 Oct 2018) by Ben Peart (benpeart).
See commit 252d079 (26 Sep 2018) by Nguyễn Thái Ngọc Duy (pclouds).
(Merged by Junio C Hamano -- gitster -- in commit e27bfaa, 19 Oct 2018)
ieot: add Index Entry Offset Table (I...
docker mounting volumes on host
...
"/var/cache/nginx": "/var/lib/docker/vfs/dir/62499e6b31cb3f7f59bf00d8a16b48d2...",
"/var/log/nginx": "/var/lib/docker/vfs/dir/71896ce364ef919592f4e99c6e22ce87..."
},
"VolumesRW": {
"/var/www": false,
"/var/cache/nginx": true,
"/var/log/nginx": true
...
How does this giant regex work?
...yB2o244nyKQSB64Q2/qlm1ov9PD4yO7yuxmbZMqjU08SucezfplwQmPhvNpH4lgn06PoS+8WeQ70diFHiGW4ECPQjeeh1PmRV3OKDLxOWccQD8r2ykMNnYcB2uxPNRA3iNo9kel7vvj0zNgwgwJlIBwAKYIXUTB22DkTcuctoHnlq3tPjCIG3a2gfUmbOLG42DQBr6KO++dKFoE4aDFtr3pbB6z+HbmtmfiK5s6E/7W0ZOjeQ8an107/txt252O3dneQMzwRxRkCaqwfde8CDuVIQ+fYgecTwZP0xz9GmoC4...
How to avoid reinstalling packages when building Docker image for Python projects?
...9
Step 4 : ADD . /srv
---> 9cc7508034d6
Removing intermediate container 0d7cf71eb05e
Step 5 : CMD python /srv/run.py
---> Running in f25c21135010
---> 4ffab7bc66c7
Removing intermediate container f25c21135010
Successfully built 4ffab7bc66c7
As you can see above, this time docker uses cache...
How to strip HTML tags from a string in SQL Server?
...lowing line in the first block: set @HTMLText = replace(@htmlText, '
',CHAR(13) + CHAR(10))
– Marcello Miorelli
Aug 24 at 11:12
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What do 'statically linked' and 'dynamically linked' mean?
...hared libs), for GNU/Linux 2.6.26, BuildID[sha1]=0xf715572611a8b04f686809d90d1c0d75c6028f0f, not stripped"
Instead let us statically link the program this time:
gcc simpleprog.c -static -o simpleprog
Running file on this statically linked binary will show:
file simpleprog
"simpleprog: ELF 64...
Extracting bits with a single multiplication
...EFGHIJKLMNOP
The math we were going to do was
ABCDEFGHIJKLMNOP
a000e0b000d00c00
0b000d00c0000000
000d00c000000000
00c0000000000000 +
----------------
abcded(b+c)0c0d00c00
Until now, we thought anything below abcde (positions ABCDE) would not matter, but in fact, as @Ternary pointed out, if b=1,...
Where do you store your salt strings?
...A-256 hash of "password" is 5e88 4898 da28 0471 51d0 e56f 8dc6 2927 7360 3d0d 6aab bdd6 2a11 ef72 1d15 42d8.
After a salt is added, such as "badpassword" the new string to be hashed is "passwordbadpassword" which, due to the avalanche effect, dramatically changes the output, to 457b f8b5 37f1 802e f...
Multiple glibc libraries on a single host
...ibc with:
diff --git a/nptl/thrd_create.c b/nptl/thrd_create.c
index 113ba0d93e..b00f088abb 100644
--- a/nptl/thrd_create.c
+++ b/nptl/thrd_create.c
@@ -16,11 +16,14 @@
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
+#include <stdio.h>
+
...