guide.bash.academy | Bash Academy - The Bash Guide | Script Programming library

by lhunath HTML Version: Current License: CC-BY-SA-4.0

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | guide.bash.academy Summary

guide.bash.academy is a HTML library typically used in Programming Style, Script Programming applications. guide.bash.academy has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has medium support. You can download it from GitHub, GitLab.

Bash Academy - The Bash Guide

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guide.bash.academy has a medium active ecosystem.

It has 914 star(s) with 240 fork(s). There are 57 watchers for this library.

It had no major release in the last 6 months.

There are 10 open issues and 10 have been closed. On average issues are closed in 56 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of guide.bash.academy is current.

Quality

guide.bash.academy has no bugs reported.

Security

guide.bash.academy has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

guide.bash.academy is licensed under the CC-BY-SA-4.0 License. This license is Strong Copyleft.

Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Reuse

guide.bash.academy releases are not available. You will need to build from source code and install.

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guide.bash.academy Key Features

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guide.bash.academy Examples and Code Snippets

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Community Discussions

Trending Discussions on guide.bash.academy

How to perform parameter expansion in fish shell?

Extended glob can't retrace behaviour

bash running string as command: Why command is not found for assignment?

QUESTION

How to perform parameter expansion in fish shell?

Asked 2019-Jun-09 at 03:28

I have a bash program that uses parameter expansion to go back one level from the directory I'm on. For example, if I'm in the directory /path/to/my/dir, my program will allow me to go to /path/to/my/ without retyping the whole path or using cd - a bunch of times. Recently, I decided to start using the fish shell and I love it. But I'm not really sure how to do parameter expansion in the fish shell. I've tried to create an alias to my bash program in ~/.config/fish/config.fish so that back will run bash /path/to/back.sh, but this doesn't run the program in the current environment. Changing it to . /path/to/back.sh doesn't really help since fish doesn't know how to run a bash script.

I was wondering if there is a parameter expansion feature in fish? I tried reading the documentation and couldn't find it.

Any help would be appreciated.

Thanks.

...

ANSWER

Answered 2019-Jun-09 at 03:28

Your back.sh script can't possibly work unless you are running it via . or source. That's because a child process cannot affect the environment, which includes the CWD, of any other process. If you run back.sh 1 it will only change the CWD of that script which isn't meaningful since the script immediately exits.

Fish does support parameter expansion but not brace constructs like ${prev_dir%/*}. Fish prefers using commands for such manipulations rather than complex syntax. So, for example, to strip everything after the last slash you would do something like this in fish:

Source https://stackoverflow.com/questions/56510969

QUESTION

Extended glob can't retrace behaviour

Asked 2017-Jul-08 at 16:52

I looked at a bash guide where I found this example: http://guide.bash.academy/expansions/

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ANSWER

Answered 2017-Jul-08 at 16:52

This is a common gotcha with wildcards. The question to ask yourself is, is there any way to split up myscript.txt such that the first piece matches !(my) and the second matches *.txt?

The answer is, counter-intuitively, yes: If you "split" "myscript.txt" into "" (the empty string) and "myscript.txt" then the empty string matches !(my) and "myscript.txt" matches *.txt. The empty string is a valid match!

Source https://stackoverflow.com/questions/44988256

QUESTION

bash running string as command: Why command is not found for assignment?

Asked 2017-Apr-26 at 10:03

for example

...

ANSWER

Answered 2017-Apr-25 at 03:24

Because a=100 is not a command, and you can't evaluate assignments like that.

In order to properly evaluate the assignment try:

Source https://stackoverflow.com/questions/43601021

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install guide.bash.academy

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