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Bash script and /bin/bash^M: bad interpreter: No such file or directory [duplicate]
... dos line ending. Following will convert it for unix
dos2unix file_name
NB: you may need to install dos2unix first with yum install dos2unix
another way to do it is using sed command to search and replace the dos line ending characters to unix format:
$sed -i -e 's/\r$//' your_script.sh
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psql - save results of command to a file
... It's also very easy to import to another table/database using COPY FROM.
NB! This requires superuser privileges and will write to a file on the server.
Example: COPY (SELECT foo, bar FROM baz) TO '/tmp/query.csv' (format csv, delimiter ';')
Creates a CSV file with ';' as the field separator.
As...
App Inventor 2 项目合并工具 AIMerge · App Inventor 2 中文网
...ventor 外部运行，需要在计算机上安装 Java 才能使用它。
如何使用 App Inventor 合并工具进行团队开发
在团队内开发应用程序时，App Inventor 合并工具非常有用。该工具允许多个开发人员在应用程序的不同屏幕上工作，然后将它们...
Why does cURL return error “(23) Failed writing body”?
... the input if input does not end with a linefeed, or for example printf a\\nb\\nc|tac|tac prints a\ncb where \n is a linefeed. You can use sponge /dev/stdout instead. Another option is printf %s\\n "$(cat)", but when the input contains null bytes in shells other than Zsh, that either skips the null ...
How many spaces will Java String.trim() remove?
...veAllBlanks(){
assertThat(" content ".trim(), is("content"));
}
NB: of course the test (for JUnit + Hamcrest) doesn't fail
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Compile, Build or Archive problems with Xcode 4 (and dependencies)
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NB: The steps below will solve 90% of your Xcode archive issues
however, from the comments it is suggested you try quitting Xcode
first. This may save you hours of setting tweaking.
Check the "user header paths" are co...
Android: open activity without save into the stack
...ISTORY flag keeps the new Activity from being added to the history stack.
NB: As @Sam points out, you can use i.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY); instead. There is no functional difference.
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Check for installed packages before running install.packages() [duplicate]
... is using another base function: find.package, which would be more direct (NB: need quiet=TRUE to prevent an error if the package isn't there)
– MichaelChirico
Jul 9 at 6:46
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Convert a date format in PHP
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NB: PHP 5.3+ required for the first two methods.
– Salman von Abbas
Mar 3 '14 at 20:01
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How to delete last item in list?
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Could you also use record.pop()? (NB: I am very new to python)
– CodeBeard
Aug 11 '13 at 8:09
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