我想在bash

Question

NList=(5) 
VList=(1) 
FList=("input/flower1.jpg" "input/flower2.jpg" "input/flower3.jpg" "input/flower4.jpg") 
IList=("320X240"   "640X480"   "1280X960"   "1920X1200") 
SList=(2 3) 
for VM in ${VList[@]}; do 

    for ((index=0; index < ${#FList};)) do 
     file=$FList[$index] 
     image_size=$IList[$index] 
     width=`echo $image_size|cut -d "X" -f1` 
     height=`echo $image_size|cut -d "X" -f2` 
     for scale_factor in ${SList[@]}; do 
      for users in ${NList[@]}; do 
       echo "V: $VM, " "F: $file, " "S: $scale_factor, " "I: $width $height , " "N: $users" 
       for i in `seq 1 $users` ; do 
        ./sr_run_once.sh $file $width $height $scale_factor & 
       done 
       wait 
      done # for users    
     done # for scale_factor 
    done # for index 
done # for VM 
exit 0 

我想的是，Flistsay flower1应的320*240 只是过程的图像尺寸，因此引入了可变折射率地图我的变量的指标......但无法得到它的窍门。它给出了一个错误。

Answer 1

那里有一些语法错误。我注释他们的意见：

#!/bin/bash 
# ^-- shebang for bash because you use bash extensions.  

NList=(5) 
VList=(1) 
FList=("input/flower1.jpg" "input/flower2.jpg" "input/flower3.jpg" "input/flower4.jpg") 
IList=("320X240"   "640X480"   "1280X960"   "1920X1200") 
SList=(2 3) 

for VM in ${VList[@]}; do 
          # +-- You've used the right syntax above, you have 
          # | to use it here as well. 
          # | 
          # |    +--- and here you have to increment 
          # v    v the index to move forward. 
    for ((index=0; $index < ${#FList[@]}; ++index)) do 

     #  v--- the braces here are not optional. 
     file=${FList[$index]} 
     image_size=${IList[$index]} 
     width=`echo $image_size|cut -d "X" -f1` 
     height=`echo $image_size|cut -d "X" -f2` 
     for scale_factor in ${SList[@]}; do 
      for users in ${NList[@]}; do 
       echo "V: $VM, " "F: $file, " "S: $scale_factor, " "I: $width $height , " "N: $users" 
       for i in `seq 1 $users` ; do 
        ./sr_run_once.sh $file $width $height $scale_factor & 
       done 
       wait 
      done # for users    
     done # for scale_factor 
    done # for index 
done # for VM 
exit 0