Shell messy notes

Shell clutter Note 1. awk usage Java code awk-F "|" '{if ($6 = "1-14-6-A" | $6 = "1-14-6-AB "| $6 =" 1-14-6-B "| $6 =" 1-14-6-BB "| $6 =" 1-14-6-C "| $6 =" 1-14-6 -CB "| $6 = '1-14-6-D '| $6 = '1-14-6-DB ') print $5} 'DW. stat.2013-05 *>/home/IM20-GROUP/xinchun. wang/data.txt-F: Change the separator >>: output the file to the file Terminal 2. count the number of times a word appears. Java code cat. log | grep "noEduExp" | wc-l wc: count the number of occurrences. 3. Search for the nth field in the file and output the first 10 records. Split by "", output $3 data, sort the data, calculate the count, sort the data, and then calculate the first 10 rows of records. Java code cat mydata. log | awk-F "" '{print $3}' | sort-rn | uniq-c | sort-rn | head-10 4. Search for all keywords in a directory. Java code grep-lR 'script './