If I execute some command in a Linux shell, how can I store the output into a string (variable) so I can use it later? I need this for a Bash script, please help.
3 Answers
Just to add to the other answers, you can use the command output directly in another command without assigning it to an intermediate variable. Example:
wget https://feeds.npr.org/510289/podcast.xml -O podcast_`date +%Y-%m-%d`.xml
is short for
TODAY=`date +%Y-%m-%d`
wget https://feeds.npr.org/510289/podcast.xml -O podcast_${TODAY}.xml
and today evaluates to
wget https://feeds.npr.org/510289/podcast.xml -O podcast_2020-11-29.xml
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