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Last active February 8, 2023 15:55
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linux shell script - get script home SH folder
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if [ -z "$BASH" ]; then bash $0; exit; fi # forced run w/ bash shell ref. https://stackoverflow.com/a/15731952/248616
SH=$(dirname `realpath $BASH_SOURCE`)
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SH aka SCRIPT_HOME ie the home folder of the running/executed script file - aka containing folder of .sh script file
ref. https://stackoverflow.com/a/11114547/248616
SH=$(dirname `realpath -s "$0"`) # this works for shell :sh ; CAUTION $0 will always store the FIRST executed .sh ie f0.sh call f1.sh, f2.sh, and $0 always pointing to f0.sh --> must use $BASH_SOURCE to have SH point to the current-script
SH=$(cd `dirname $BASH_SOURCE` && pwd) # this only works for shell :bash and NOT working for :sh
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