[英]Linux Bash script grep error
因此,我和我的教授進行了大約2個小時的研究,無法弄清問題出在哪里,所以我希望有人能看到我們錯過的內容。
askDelete()
{
echo -e " Still want to delete it? (y/n)\n"
read answer
if [ "$answer" = 'y']; then
rm $1
else
echo -e "\nFile was not removed\n"
fi
}
#############################################
clear
#script starts here
echo -e "\n\tCleaner Script\n"
dir=`pwd`
while [ "$choice" -ne 3 ] || [ "$choice" != "quit" ]
do
echo -e "\nEnter 1 to delete by filename or type the word file."
echo -e "\nEnter 2 to delete by a string within a file or type the word string"
echo -e "\nEnter 3 or quit to exit this program.\n"
read choice
case "$choice" in
1|"file") echo -e"Enter the name of the file to delete: "
read file
result=$(find . -name "$file")
if [ -z $result ]; then
echo "File not found"
else
askDelete $file
fi
;;
2|"string") echo -e "Enter the sting to delete the files that contain it: "
read searchstring
result=$(find $dir -type f -perm /400)
echo $result
for file in $result;
do
echo -e "String is $searchstring \nFile is $file"
grep –q "$searchstring" "$file"
if [ $? -eq 0 ]; then
echo "****MATCH****"
askDelete $file
fi
done
;;
3|"quit") echo -e "Exiting program"
break;;
*) echo -e "\nChoice not listed";;
esac
done
當我執行選擇2時,我會轉到grep,並獲得帶有故障排除消息的錯誤消息。
Enter the sting to delete the files that contain it:
pizza
/home/hopper/z#/CSCI/CSCI330/Assignments/assign4/smith.txt
/home/hopper/z#/CSCI/CSCI330/Assignments/assign4/data2.txt
/home/hopper/z#/CSCI/CSCI330/Assignments/assign4/jones2.txt
/home/hopper/z#/CSCI/CSCI330/Assignments/assign4/cleaner.sh
/home/hopper/z#/CSCI/CSCI330/Assignments/assign4/jones.txt
/home/hopper/z#/CSCI/CSCI330/Assignments/assign4/data.txt
String is pizza
File is /home/hopper/z#/CSCI/CSCI330/Assignments/assign4/smith.txt
grep: pizza: No such file or directory
String is pizza
File is /home/hopper/z#/CSCI/CSCI330/Assignments/assign4/data2.txt
grep: pizza: No such file or directory
String is pizza
File is /home/hopper/z#/CSCI/CSCI330/Assignments/assign4/jones2.txt
grep: pizza: No such file or directory
String is pizza
File is /home/hopper/z#/CSCI/CSCI330/Assignments/assign4/cleaner.sh
grep: pizza: No such file or directory
/home/hopper/z#/CSCI/CSCI330/Assignments/assign4/cleaner.sh:
grep –q "$searchstring" "$file"
String is pizza
File is /home/hopper/z#/CSCI/CSCI330/Assignments/assign4/jones.txt
grep: pizza: No such file or directory
String is pizza
File is /home/hopper/z#/CSCI/CSCI330/Assignments/assign4/data.txt
grep: pizza: No such file or directory
在具有絕對路徑的BASH腳本之外,Grep也可以正常工作。 測試了if語句,如果我取出-eq,它會正常工作,因為它會讀取grep確實成功運行,只是找不到目錄。 據我所知,它忽略了我的文件,而是使用字符串搜索作為目錄。
grep的'-q'參數的破折號部分是一個特殊的非ASCII字符,可能是UTF-8中的破折號,我看起來並不難。 Grep不會將破折號解釋為開始選項,而是在文件列表中搜索字符串“ –q”。 “ pizza”在文件列表中。
如果您從網頁或Word文檔中復制代碼,則很容易發生這種情況。 無論如何,刪除-q並重新輸入它,腳本應該會更好地工作。
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