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Semicolons superfluous at the end of a line in shell scripts?
...lons at the end of a line are superfluous, since the newline is also a command separator. case specifically needs double semicolons at the end of the last command in each pattern block; see help case for details.
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Getting a 'source: not found' error when using source in a bash script
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In the POSIX standard, which /bin/sh is supposed to respect, the command is . (a single dot), not source. The source command is a csh-ism that has been pulled into bash.
Try
. $env_name/bin/activate
Or if you must have non-POSIX bash-is...
Do git tags get pushed as well?
...ectory all the tags are present, but when I logon to the
remote repository and do a git tag , only the first few show up.
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delete map[key] in go?
...ems a poor use of resources though!
Another way is to check for existence and use the value itself:
package main
func main () {
var sessions = map[string] chan int{};
sessions["moo"] = make (chan int);
_, ok := sessions["moo"];
if ok {
delete(sessions, "moo");
}
}
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Shallow copy of a Map in Java
As I understand it, there are a couple of ways (maybe others as well) to create a shallow copy of a Map in Java:
3 Answer...
How to create a function in a cshtml template?
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@Paul I don't understand what you mean by that.
– Daniel Liuzzi
Jun 21 '16 at 11:51
2
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How to escape a single quote inside awk
..., with '\'' you close the opening ', then print a literal ' by escaping it and finally open the ' again.
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Show a PDF files in users browser via PHP/Perl
...n why I use cgi to show the pdf is I want to track the clicks for the pdf, and cloak the real location of the saved pdf.
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Remove 'a' from legend when using aesthetics and geom_text
... this was not that obvious. A proper example would have used the OP's code and just added the missing argument like this:
..
geom_text(aes(label=Species), show_guide = F) +
..
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awk without printing newline
...%s",whatever You forgot the comma. You can also extend with more variables and separate them with a comma.
– Hielke Walinga
Aug 7 '18 at 11:27
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