shell小试总结

cat ./loadJobList.txt | while read line; do
	autorep -q -J $line | grep -o '33470_[a-zA-Z]*FW' >> FWFile
	autorep -q -J $line | grep -oP '(?<=").*(?=")' >> FWFilePath
	#将line.bak文件cp到line
	eval "cp ${line}.bak" ${line}
	#将line中的20200107替换为20191001
	cp ${line/20200107/20191001} $line
	#print the first 10 character in the last row
	tail -1 $line | head -c10
	#replace string in the last row
	sed -i '$s/^20[0-9]\{6\}/20200107/g' $line
	
done