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HPR3551: Bash snippet - some possibly helpful hints
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Manage episode 446211218 series 2795599
Content provided by HPR Volunteer and Hacker Public Radio. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by HPR Volunteer and Hacker Public Radio or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.
Overview I write a moderate number of Bash scripts these days. Bash is not a programming language as such, but it’s quite powerful in what it can do by itself, and with other tools it’s capable of many things. I have enjoyed writing such scripts for many years on a variety of hardware and operating systems, and Bash is my favourite - partly because Linux itself is so flexible. This is just a short show describing three things I tend to do in Bash scripts to assist with some tasks I find I need to undertake. Generate Bash variables from a text file - usually output from a program Fill Bash arrays with data from a file or other source Use environment variables to control the Bash script’s execution Long notes Follow this link to read the detailed notes associated with this episode. Links Various links: What is the “eval” command in bash? A Complete Guide on How To Use Bash Arrays Bash mapfile builtin command Bash manual 3.7.1 Simple Command Expansion Previous episodes in this series about arrays: Bash Tips - 16 Bash Tips - 17 Bash Tips - 18 Bash Tips - 19 Bash Tips - 20
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116 episodes
MP3•Episode home
Manage episode 446211218 series 2795599
Content provided by HPR Volunteer and Hacker Public Radio. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by HPR Volunteer and Hacker Public Radio or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.
Overview I write a moderate number of Bash scripts these days. Bash is not a programming language as such, but it’s quite powerful in what it can do by itself, and with other tools it’s capable of many things. I have enjoyed writing such scripts for many years on a variety of hardware and operating systems, and Bash is my favourite - partly because Linux itself is so flexible. This is just a short show describing three things I tend to do in Bash scripts to assist with some tasks I find I need to undertake. Generate Bash variables from a text file - usually output from a program Fill Bash arrays with data from a file or other source Use environment variables to control the Bash script’s execution Long notes Follow this link to read the detailed notes associated with this episode. Links Various links: What is the “eval” command in bash? A Complete Guide on How To Use Bash Arrays Bash mapfile builtin command Bash manual 3.7.1 Simple Command Expansion Previous episodes in this series about arrays: Bash Tips - 16 Bash Tips - 17 Bash Tips - 18 Bash Tips - 19 Bash Tips - 20
…
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116 episodes
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