Shell Custom Array element delimiter

Company personnel named image used to add a space, today there is a need, to bulk download this write pictures, this egg hurt

The correct URL is this

Http://url 2119 01.jpg

Http://url 001.jpg

Written into the text will be added to escape, become

Http://url\ 2119\ 01.jpg

Http://url\ 001.jpg

The result of the loop is that the egg hurts.

#!/bin/bashpic=$ (cat list.txt) for I in $picdo Echo ' $i ' done

Results

[Email protected] ~]# sh download.sh http://url211901.jpghttp://url001.jpg

It's all messed up.

Workaround:

Because of the segmentation of the array elements, it is controlled by the IFS system built-in field delimiter, so the script is rewritten as follows

#!/bin/bashpic=$ (cat list.txt) ifsbak= $IFS # Save the default ifsifs=$ ' \ n ' #指定分隔符for i in $picdo echo "$i" doneifs= $IFSBAK # Also Original default delimiter

The resulting output is as follows:

[Email protected] ~]# sh download.sh http://url\ 2119\ 01.jpghttp://url\ 001.jpg

There's no problem with downloading pictures in bulk at this time.

Shell Custom Array element delimiter