bash

bash "No such file or directory"

Every time I opened Terminal:

bash: /home/ben/.bashrc-agaric: No such file or directory

But my ~/.bashrc was clear of calling that file.

And source .bashrc produced no errors. So where was it still calling the old file path?

Answer:

sudo vi /etc/bash.bashrc

(On Ubuntu. The global bash file may be in other places also.)

bash script check for existence of any argument

if [ $# -ne 1 ]
then
echo "USAGE: scriptname arg1 arg2"
return
fi

concatenate all files in directory (GNU-Linux)

cat ls -rt > newfilename

Note the backticks.