php - shell_exec not executing sh file for inkscape command -

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एक.श 

  #! bin / bash कमांड = "सीपी 357.svg 000.svg" गूंज "कमांड निष्पादित"; Exec $ आदेश;    
 निष्पादित करके  sh one.sh  चलाता है और यहां तक ​​कि php  shell_exec ("sh one.sh") में;  काम करता है ठीक है।  
 दो.श  
  #! Bin / bash कमांड = "/ usr / bin / inkscape -f 357.svg -e 357.png" गूंज कमांड "; Exec $ आदेश;   
 शेल से  sh two.sh  ठीक काम करता है  
  लेकिन php का उपयोग   shell_exec ("sh   निष्पादन नहीं करना   
 कोई भी बता सकता है कि वह क्यों निष्पादित नहीं कर रहा है?   
 
 
 प्रयास करें:  
  गूंज shell_exec ("sh two.sh 2" gt; & amp; 1; ")"   
 और देखें कि आउटपुट क्या है, हो सकता है कि यह आपको अनुमति अस्वीकृत त्रुटि देगा। संभव है कि आप जिस उपयोगकर्ता के साथ चल रहे हैं उसे जांचना (शायद www-data की तरह कुछ)

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