How to run a program in a clean environment in bash?
I want to run a program in an empty environment (i.e. with no envariables set). How to do this in bash?
bash
Why is a variable visible in a subshell?
The Learning Bash Book mentions that a subshell will inherit only environment variables and file descriptors, etc., and that it will not inherit variables that are not exported:
Background process of subshell strange behaviour
I wonder why some similar bash commands behave the way they do.
Is it possible to strace the builtin commands to Bash?
Inspired by this question, titled: When are the built-in commands loaded to memory, while attempting to answer this I tried the following command and was a bit surprised that I couldn’t run it:
Setting IFS for a single statement
I know that a custom IFS value can be set for the scope of a single command/built-in. Is there a way to set a custom IFS value for a single statement?? Apparently not, since based on the below the global IFS value is affected when this is attempted
How to use a variable as part of an array name
I have two arrays:
How do I loop through only directories in bash?
I have a folder with some directories and some files (some are hidden, beginning with dot).
Bash: calculate the time elapsed between two timestamps
I have written a script that notifies me when a value is not within a given range. All values “out of range” are logged in a set of per day files.
How to display control characters (^C, ^D, ^[, …) differently in the shell
When you type control characters in the shell they get displayed using what is called “caret notation”. Escape for example gets written as ^[ in caret notation.
Is it possible to set Gnome Terminal’s title to “[email protected]” for whatever host I’m connected to?
I’d like to set the terminal title to [email protected] so I can easily tell which machine I’m connected to from the window title. Is there a way to do this from SSH or from GNOME Terminal?