I'm doing a simple%% co to be able to do directory backups, but I want the resulting file name to be script .
I have the following code.
#!/bin/bash
clear
ls -d */
echo "Elige el directorio del cual hacer el backup (sin incluir el /)"
read directorio
echo "Realizando el backup de $directorio..."
tar -zcvf $(directorio)_$(date +%F).tar.gz $directorio
But this generates the file directorio_aaaa-mm-dd
You could try something like this:
#!/bin/bash
clear
ls -d */
echo "Elige el directorio del cual hacer el backup (sin incluir el /)"
read directorio
echo "Realizando el backup de $directorio..."
tar -zcvf $directorio"_"$(date +%F).tar.gz $directorio
The error you have in the program is in the last line.
When you do this:
$(directorio)_$(date +%F).tar.gz
By using the operator $() , you are indicating that what is inside the parentheses is a command , therefore he ignores this and omits it, which results in it being < strong> _aaaa-mm-dd .
Therefore.
The solution consists of two steps:
How do we do it?
Like this:
$directorio"_"$(date +%F).tar.gz
What we indicate to the interpreter is that the name of the directory concatenates the character _ , it should be concatenated since if it were added without the quotes, like this:
$directorio_$(date +%F).tar.gz
The interpreter would look for the variable $directorio_ , which would leave the file with the name yyyy-mm-dd.tar.gz .
Only comment that you should use the quotes to avoid surprises when the variable is expanded and have a directory name with spaces:
"${directorio}_$(date +%F).tar.gz"
I wanted to leave this as a comment but my score is not enough to leave comments, only answers.
And since I can only leave one answer, I make one more contribution that does not answer the question but is that seeing what you want to do I could not help thinking about using a select , this way you prevent someone from entering incorrectly the name of the Directory:
PS3="Elige el número del directorio del cual deseas hacer el backup: "
select dir in */; do
if [[ -d "$dir" ]];then
tar -zcvf "${dir%/}_$(date +%F).tar.gz" "$dir"
break
fi
echo "Selección inválida"
done
You can do it in the following way:
export FECHA=($(date +"%d-%m-%Y_%H:%M:%S") )
export NAME=Directorio_${FECHA}.backup
tar -zcvf $(NAME).tar.gz $directorio
The solution was quite simple. I only replaced $ (directory) with $ {directory} .