Bash 脚本失败，路径名中有空格

Question

I have a shell script I'd like to run, but it fails in accessing the external drive path with spaces. I'm not sure which escaping characters to use here. I've tried hard escape \\ and quotes. The error I get is:

ls: /Volumes/G-DRIVE: No such file or directory
ls: R-Series/Sentinel-1/path_82_frame_648_example/*.zip: No such file or directory
ls: SSD: No such file or directory
ls: mobile: No such file or directory

The original script is:

#!/bin/sh
Path_S1=/Volumes/'G-DRIVE mobile SSD R-Series'/Sentinel-1/path_82_frame_648_example/   
Path_sub=/Volumes/'G-DRIVE mobile SSD R-Series'/Sentinel-1/path_82_frame_648_sub/   

oldEnd=.zip
newEnd=subset_Orb

for i in $(ls -d -l $Path_S1$S1*.zip)
do
n=${i%.*}
n=${i%T*}
n=${n#"${n%_*}_"}

date
/Applications/snap/bin/gpt /Users/brbell01/Documents/SNAP/subset_and_update_orbits_gpt.xml -Pinput1=$i -Poutput1="$Path_sub$n$newEnd"
date

done

Answer 1

The main problems:

• unquoted variables
• trying to parse ls ==> http://mywiki.wooledge.org/ParsingLs

A bit of a rewrite for readability:

PATH="/Applications/snap/bin:$PATH"

root='/Volumes/G-DRIVE mobile SSD R-Series/Sentinel-1'
Path_S1="$root/path_82_frame_648_example"
Path_sub="$root/path_82_frame_648_sub"

data=/Users/brbell01/Documents/SNAP/subset_and_update_orbits_gpt.xml
oldEnd=.zip
newEnd=subset_Orb

for zip in "$Path_S1"/*"$oldEnd"    # don't quote the wildcard
do
    # do something here to extract $n

    date
    gpt "$data" -Pinput1="$zip" -Poutput1="$Path_sub/${n}$newEnd"
    date
done