Why doesn’t my loop over the output of ls work?
I am trying to feed Directory names into a for loop. My code is as follows:
shell
su vs su – (on Debian): why is PATH the same?
I know what should be the difference between su and su -, but in my system (Debian) for example PATH is the same:
What is the rationale for the bash shell not warning you of arithmetic overflow etc.?
There are limits set for the arithmetic evaluation capabilities of the bash shell. The manual is succinct about this aspect of shell arithmetic but states:
Brace expansion not working in a script
for i in {1..40} do echo $i done I got {1..40} and I would like to have something like 1 2 3 and so on so I can use the variable i inside a command’s parameter. Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help … Read more
$BASHPID And $$ differ in some cases
I’m reading “BASH pocket guide of Oreilly”.
It said:
Bash clear command weird behavior deletes scrollback buffer.
Whenever I run clear in my terminal, it deletes the scrollback buffer from the top of the screen to the current line. I have tried it in xterm, st, and urxvt, and the problem remains. Is there any way I can change the behavior of clear so it does not touch the scrollback buffer?
What characters are required to be escaped in command line arguments?
In Bash, when specifying command line arguments to a command, what characters are required to be escaped?
How to check if file is empty or it has only blank characters?
This will notify us if the file is empty:
How to get the real name of the controlling terminal?
How can one get the real name of the controlling terminal (if there is one, else an error) as a pathname?