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slightly longer explanation

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kneutron 2021-04-09 15:45:24 -05:00 committed by GitHub
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commasep-num.mrg
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@ -11,9 +11,15 @@ function commanum () {
#[ $(echo $- |grep i |wc -l) -gt 0 ] && #[ $(echo $- |grep i |wc -l) -gt 0 ] &&
[ ! "$1" = "" ] && commanum $1 [ ! "$1" = "" ] && commanum $1
exit;
# Example usage: # Example usage:
#$ tmpvar=$(./commasep-num.mrg 80000000000) #$ tmpvar=$(./commasep-num.mrg 80000000000)
#$ echo $tmpvar #$ echo $tmpvar
#80,000,000,000 #80,000,000,000
# Limitation: it doesn't handle fractional numbers x.xx , just integers - anything after the decimal gets dropped # Limitation: it doesn't handle fractional numbers x.xx , just integers - anything after the decimal gets dropped
# so don't try to display π (pi) with it ;-) # so don't try to display π (pi) with it ;-)
# this appears to work somewhat with fractionals but is not bash-internal:
#$ echo 1232323.1415927 | awk '{printf(fmt,$1)}' fmt="%'19.19f\n"
#1,232,323.1415927000343799591