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How to ignore user's time zone and force Date() use specific time zone
...every other part of the world. And because the server timestamp is usually UNIX timestamp, which is by definition in UTC, the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT), we cannot determine DST or non-DST from timestamp.
So the solution is to DISREGARD the current time zon...
Exit a Script On Error
...tuff
Other traps can be set to handle other signals, including the usual Unix signals plus the other Bash pseudo signals RETURN and DEBUG.
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What's the difference between “squash” and “fixup” in Git/Git Extension?
...LL BE LOST.
D:/code/fenixito-legacy-api/.git/rebase-merge/git-rebase-todo [unix] (11:57 23/10/2019) 1,1 start
"D:/code/xxx/.git/rebase-merge/git-rebase-todo" [UNIX] 27L, 1170C
So you see:
s, squash = use commit, but meld into previous commit
f, fixup = lik...
How does grep run so fast?
...ally looks at (and it skips many
bytes entirely).
GNU grep uses raw Unix input system calls and avoids copying data
after reading it. Moreover, GNU grep AVOIDS BREAKING THE INPUT INTO
LINES. Looking for newlines would slow grep down by a factor of
several times, because to find the ne...
Why does the order in which libraries are linked sometimes cause errors in GCC?
...onger available to static libraries later on the link line.
The typical UNIX linker works from left to right, so put all your dependent libraries on the left, and the ones that satisfy those dependencies on the right of the link line. You may find that some libraries depend on others while at th...
How to only find files in a given directory, and ignore subdirectories using bash
... Yes, this works. -maxdepth isn't implemented in find on some older Unixes.
– CCTO
May 26 '17 at 13:54
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What are conventions for filenames in Go?
...
What I should to do if I want to build for unix and others. E.g. I can make two files file_windows.go and file_others.go. It works fine. But for file_unix.go and file_others.go it does'n' work. I don't want to create eight files darwin freebsg linux openbsd netbsd dr...
Get last n lines of a file, similar to tail
...
Assumes a unix-like system on Python 2 you can do:
import os
def tail(f, n, offset=0):
stdin,stdout = os.popen2("tail -n "+n+offset+" "+f)
stdin.close()
lines = stdout.readlines(); stdout.close()
return lines[:,-offset]
For ...
Can git automatically switch between spaces and tabs?
...a file .git/info/attributes which contains:
*.py filter=tabspace
Linux/Unix
Now run the commands:
git config --global filter.tabspace.smudge 'unexpand --tabs=4 --first-only'
git config --global filter.tabspace.clean 'expand --tabs=4 --initial'
OS X
First install coreutils with brew:
brew i...
Rails: FATAL - Peer authentication failed for user (PG::Error)
...accountpassword
3) Create the postgres account's new passwod:
Enter new UNIX password: databasesarefun
Retype new UNIX password: databasesarefun
passwd: password updated successfully
Getting this error message?:
Run `$ bin/rake db:create db:migrate` to create your database
$ rake db:create db:...