unable to download updates failed to refresh cache

I have Ubuntu 19.10 and I am getting this message: Unable to download updates – failed to refresh cache: w: ignoring file ‘wir’ in directory ‘/etc/apt/sources.list.d/’ as it has no filename extension. Any ideas? Thanks $ ls -1 /etc/apt/sources.list.d/ brave-browser-beta.list brave-browser-beta.list.save brave-browser-release.list brave-browser-release.list.save brave.list brave.list.save windscribe-repo.list windscribe-repo.list.save wir

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Script to perform linux command by traversing multiple directories

I need a script which traverse parent directory to each sub directory and perform some linux operation and print it to text file. Sample directory structure: hai/ 1/ 2/ 3/ din/ win/ dir/ I tried this #!/bin/sh for dir in /home/kvinod5/scripts/scripts// do dir=${dir%/} echo ${dir##*/} | cat $dir/config.xml | grep .CredentialsProvider.Create| sed -e ‘s/com.cloudbees.plugins.credentials.CredentialsProvider.Create:/’/ |…

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