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How to install a bash function containing variables using a bash script? [duplicate]
(2 answers)
Create a script that adds lines of code to .bashrc then reloads the terminal
(2 answers)
Closed 4 years ago.
I've written a very simple utility to allow a couple of colleagues to easily access some system logs.
The dependencies for this are installed by running a curl to an install.sh file on GitHub.
There are a couple of functions and aliases that are handy to have in your bash profile. Out of interest how would I programmatically add items to a user's bash profile in a shell script.
Related
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Difference between sh and Bash
(11 answers)
$BASH_VERSION reports old version of bash on macOS, is this a problem that should be fixed?
(4 answers)
Closed 10 months ago.
I have some code that looks like this:
export AWS_REGION='us-east-1'
export CLUSTER_NAME='my_cluster'
export PROJECT_NAME='my_project'
source ./utils.sh
...additional functions...
annotate_cluster # comes from utils.sh
annotate_cluster, which comes from utils.sh, relies on the environment variable PROJECT_NAME. However, when I run it, it complains _utils.sh: line 60: FOO-${PROJECT_NAME^^}: bad substitution. Why can it not access the environment variable I have set?
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How do I run a shell script without using "sh" or "bash" commands?
(13 answers)
How to enable a system-wide function for users including sudo?
(2 answers)
Closed 3 years ago.
I have a bash script called climb.sh. When I execute it I write
./climb.sh 1
while inside the directory in which the script is located. However, I want to do the same thing wherever I am, and across all shell sessions by simply calling
climb 1
Also, climb.sh takes an numeric argument and calls "cd ../" that many times. In order for the program to work, it has to run alongside the current process, not within some child process.
How to achieve all this?
Thanks
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Global environment variables in a shell script
(7 answers)
Closed 5 years ago.
I'm working a small project which needs using OpenMPI to make "mpicc" work.
I made a file make_cmd:
#!/bin/bash
module load OpenMPI
However, after executing ./make_cmd, I was told:
mpicc: command not found
But if I just type on the command line: module load OpenMPI, then mpicc is working.
Why is that? Thanks!
See this answer on neighbouring site.
Because module is an alias/shell function and not a binary program, it's not necessarily available in the non-interactive sub-shell that is created when you run your script. You could probably run source make_cmd though, as that will just run the commands in your current interactive shell. You could ditch the #!/bin/bash line in that case.
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How to set environment variables in Python?
(19 answers)
Reading and writing environment variables in Python? [duplicate]
(4 answers)
set environment variable in python script
(3 answers)
Closed 5 years ago.
In terminal (bash) on OSX I can set an environment variable, using the syntax export VARNAME=1 or export VARNAME="hello"; and that persist as long as the session is running, or until the terminal window is closed.
What would be the equivalent form, to do the same via Python3? I would like to avoid to call Popen just to set a global variable.
Also I need this variable only for the purpose to run my python code; once the script is done, I do not need it anymore; so even if it last only for the lifespan of my script running, it is acceptable.
This question already has answers here:
Writing a Bash script without the shebang line
(2 answers)
Bash script execution with and without shebang in Linux and BSD
(2 answers)
Closed 5 years ago.
If after logging into my system I type: bash (to use bash subshell) and then try to run a bash script (e.g. example.sh), then does it matter if I do not put #!/bin/bash as the first line of the script or it is fine since I am already inside bash subshell?