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Comparing numbers in Bash
...o quotes are optional. Gilles has a better explanation on when to use them unix.stackexchange.com/a/68748/50394
– Daniel Andrei Mincă
Aug 13 '18 at 18:34
1
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puts vs logger in rails rake tasks
...tail -f the log file, it'll do the trick.
Many users are aware of the UNIX®
command 'tail', which can be used to
display the last few lines of a large
file. This can be useful for viewing
log files, etc.
Even more useful in some situations,
is the '-f' parameter to the 'tail'
...
How to zip a whole folder using PHP
...er where the zip application is in the search path. Should be true for all unix-based and I guess most windows-based servers.
exec('zip -r archive.zip "My folder"');
unlink('My\ folder/index.html');
unlink('My\ folder/picture.jpg');
The archive will reside in archive.zip afterwards. Keep in mind ...
write a shell script to ssh to a remote machine and execute commands
...gure out a way to get these installed on the VM, somehow you got an entire Unix system installed, what's a couple more files?)
With your ssh agent forwarded, you can now log in to every system without a password.
And even better, that pam module will authenticate for sudo with your ssh key pair so...
How to make “if not true condition”?
...
On Unix systems that supports it (not macOS it seems):
if getent passwd "$username" >/dev/null; then
printf 'User %s exists\n' "$username"
else
printf 'User %s does not exist\n' "$username"
fi
This has the advanta...
How can I replace every occurrence of a String in a file with PowerShell?
...e care most of the time.
Also the methods don't mess up the line endings (Unix line endings that might be used) in contrast to an algorithm using Get-Content and piping through to Set-Content.
So for me: Fewer things that could break over the years.
A little-known thing when using .NET classes is...
Is there a way to get the git root directory in one command?
...repository, which may not
necessarily be the current directory.
So, on UNIX you can do:
git config --global --add alias.root '!pwd'
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Listing only directories using ls in Bash?
...
Albert, I used time, the Unix function. /// I agree, echo */ is cleverer than ls -d */.
– isomorphismes
Aug 5 '13 at 15:43
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How to really read text file from classpath in Java
... dummy
Test.class
txt
SomeTextFile.txt
And then (using the Unix path separator as I'm on a Linux box):
java -classpath code:txt dummy.Test
Results:
true
true
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C fopen vs open
...ry mode, which can be very helpful if your program is ever ported to a non-Unix environment (though the world appears to be converging on LF-only (except IETF text-based networking protocols like SMTP and HTTP and such)).
A FILE * gives you the ability to use fscanf and other stdio functions.
Your c...