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Can I export a variable to the environment from a bash script without sourcing it?
...tioned, is to use source or . to execute the script in the context of the calling shell:
$ cat set-vars1.sh
export FOO=BAR
$ . set-vars1.sh
$ echo $FOO
BAR
Another way is to have the script, rather than setting an environment variable, print commands that will set the environment variable:
$ c...
What is a correct mime type for docx, pptx etc?
...
application/vnd.ms-excel is specifically for .xls files. the ability for it to work with .xlsx depends on the client software in use.
– Armand
Nov 4 '14 at 0:03
...
How to create a GUID/UUID in Python
...
Also, have a look at the shortuuid module I wrote, as it allows you to generate shorter, readable UUIDs: github.com/stochastic-technologies/shortuuid
– Stavros Korokithakis
Dec 31 '12 at 16:22
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Fast way to discover the row count of a table in PostgreSQL
...of rows due to the nature of MVCC. There is a way to speed this up dramatically if the count does not have to be exact like it seems to be in your case.
Instead of getting the exact count (slow with big tables):
SELECT count(*) AS exact_count FROM myschema.mytable;
You get a close estimate like ...
How to escape double quotes in JSON
.../publications/files/ECMA-ST/ECMA-404.pdf (Par. 9 - Strings) where it says: All characters may be placed within the quotation marks except for the characters that must be escaped and then it specifies: \" represents the quotation mark character (U+0022)
– mastazi
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How to empty (clear) the logcat buffer in Android [duplicate]
...rooted buffers (main, system ..etc).
adb logcat -c
If you want to clear all the buffers (like radio, kernel..etc), Please use the following commands
adb root
adb logcat -b all -c
or
adb root
adb shell logcat -b all -c
Use the following commands to know the list of buffers that device supp...
What is the difference between YAML and JSON?
What are the differences between YAML and JSON, specifically considering the following things?
13 Answers
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What is the rationale for all comparisons returning false for IEEE754 NaN values?
Why do comparisons of NaN values behave differently from all other values?
That is, all comparisons with the operators ==, =, where one or both values is NaN returns false, contrary to the behaviour of all other values.
...
What are the uses of the exec command in shell scripts? [closed]
...ons in the kernel, there are a family of them based on execve, which is usually called from C.
exec replaces the current program in the current process, without forking a new process. It is not something you would use in every script you write, but it comes in handy on occasion. Here are some sce...
Develop Android app using C#
...this on their site dot42 has been discontinued and is no longer supported. All sources are availabe on GitHub. The latest build is available as a binary setup. as of 5/29/2015. They did have a source download and a GitHub.
– JabberwockyDecompiler
May 30 '15 at...