10-14-2016
You're welcome,
-a means read into an array (when using
bash).
F is the name of the array
printf is the preferred and standardized alternative to
echo. The first field to
printf is the "format string" . "%s" means "string" and "\n" means new line". See:
printf or the bash man page.
To get all the element of the array one normally uses:
"${F[@]}"
"${F[@]# }" does the same, but in addition it uses
parameter expansion and
# means cut off a leading space if it exists.
Since
F is an array it will work on every element of the array (more about this in the bash man page).
With the while read loop, for every line of the input file, the array
F gets filled anew.
Last edited by Scrutinizer; 10-14-2016 at 05:34 AM..
This User Gave Thanks to Scrutinizer For This Post:
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