One day, I had to go through a large bash script and create a Debian package for our system. It could have been a strenuous job if I had to understand it. I was lazy to read it. So I found an easy way to get all the steps. I downloaded this on a container and ran with bash -x
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# wget https://download.vividcortex.com/install --2020-05-20 16:24:06-- https://download.vividcortex.com/install Resolving download.vividcortex.com (download.vividcortex.com)... 13.33.243.45, 13.33.243.100, 13.33.243.16, ... Connecting to download.vividcortex.com (download.vividcortex.com)|13.33.243.45|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 45048 (44K) [application/octet-stream] Saving to: 'install' install 100%[==================================>] 43.99K --.-KB/s in 0.06s 2020-05-20 16:24:07 (732 KB/s) - 'install' saved [45048/45048] # ls install # bash -x install + VERSION=1.8.159 + baseuri=https://download.vividcortex.com + set -u + POSIXLY_CORRECT=1 + export POSIXLY_CORRECT + TERM=dumb + export TERM + unalias -a + defaultconfdir=/etc/vividcortex + confdir=/etc/vividcortex + logdir=/var/log/vividcortex + runvdir=/var/run/vividcortex + superpid=/var/run/vc-agent-007.pid + tempdir= + socks5= + SKIPCERTS= + LOADCERTS= + EXISTS='command -v' + command -v ls + command -v ls + test https://download.vividcortex.com = unknown ++ id -u + '[' 0 -ne 0 ']' + test -d /usr + exitcode=4 + '[' 4 -eq 4 ']' ++ getopt -o hslkbup:t:v:i:a:c:d:g: -l help,autostart,no-autostart,start-now,load-certs,skip-certs,batch,static,uninstall,delete,debug,off-host,update-init,static-ip,dyn-sample-text,no-proxy,proxy:,token:,version:,init:,sample:,api-uri:,cdn-uri:,bin-dir:,cfg-dir:,aggr-uri:,hostname:,host-tags: -n install -- + GETARGS=' --' + test 0 -eq 0 + eval set -- ' --' ++ set -- -- + AUTOSTART= ...
You can use this if you want to debug or understand a shell script. But of course, you should be able to run it to test.
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