Note: this is a very specific question. Questions about other environment variables are unlikely to apply.

Why the time left variable does not work properly?

I newby in bash. I want to add some files into file (apk file):

Is there any meaningful/behavioural difference between putting a ! inside or outside of square bracket tests?

ciao ragazzi vorrei capire perche il mio xpath cattura soltanto laprima inserzione all interno della pagina web qualcuno sa dirmi perche ? grazie
script:

I am new to bash script. I need help in parsing a text file (say sample.txt) which contains the data like below

hi i have this web page https://www.immobiliare.it/search-list/?idContratto=1&idCategoria=1&criterio=prezzo&ordine=asc&__lang=it&vrt=43.733724%2C10.792973%3B43.723459%2C10.802071%3B43.7267%2C10.809066%3B43.729383%2C10.804582%3B43.732701%2C10.801835%3B43.733554%2C10.800977%3B43.735104%2C10.795913%3B43.733724%2C10.792973&pag=1
i try to take price , description , link , squaremeter, with xpath , but return empty value , i suppose this problemexist because the page is not much fast for load , is possible introduce delay , for wait arrive all data ??
my code :

I’ve got the following script:

I’ve a folder with temporary generated bash script content
I made a script to loop through the folder and execute files two by two

I have defined the following Bash function: