print the last field of the last input line {field = $NF} END { print field} print every input line with more than four fields NF > 4 print every input line in which the last field is more than 4 $NF > 4 print
echo -e "A line 1\nA line 2" | awk 'BEGIN{ print "Start" } { print } END{ print "End" }' Start A line 1 A line 2 End 当使用不带参数的print时,它就打印当前行,当print的参数是以逗号进行分隔时,打印时则以空格作为定界符。在awk的print语句块中双引号是被当作拼接符使用,例如: echo ...
AI代码解释 awk 'BEGIN{FS=OFS="\t"}$3=="gene"{deleteattr # reset attr[]arraysplit($NF,a,";")# split last field on";"for(iina){# loop through arraysplit(a[i],b,"\"")# split array entry on double quote;result:b[1]==attribute name,b[2]==attribute value;wedonot care about...
Print all lines with an even number of fields:NF % 2 == 0 Replace the first field of each line by its logarithm:{ $1 = log($1); print } Print the third and second columns of a table in that order:{print $3,$2} Print all input lines with an A, B, or C in the second ...
The following prints vertical tabs after every field: $awk'BEGIN { printf "Field 1\vField 2\vField 3\vField 4\n" }'Field1Field2Field3Field4 The following prints a backspace after every field except Field4. This erases the last number in each of the first three fields. ...
Print the Row Number (NR), then a dash and space ("- ") and then the first item ($1) from each line in samplefile.txt:$ awk '{print NR "- " $1 }' samplefile.txt Print the first item ($1) and then the third last item $(NF-2) from each line in samplefile.txt:...
if the output of command 'blah' gives you three columns, and you want to make 6 columns where only the last field of each line is reformatted, do# blah | pr -2 -a -tEnjoy, Have FUN! H.Merijn Enjoy, Have FUN! H.Merijn 0 Kudos Reply Elmar P. Kolkman Honored Contributor ...
The first block delimited by {} is executed for each line of the file. We count all records that have and don't have M in the 4th field. The numbers are stored in the m and f variables. The END block is executed once in the end of the program. There we print the number of ...
# wc last | ec -l cut命令:remove sections from each line of files 能够被cut命令修剪的文件,一般都是具有一定结构或格式的文本文档,如/etc/passwd cut格式为:cut [OPTION]…… [FILE……] -d,delimiter=DELIM:指定在实施修剪操作时所依赖的分隔符,默认是空白字符 ...
问在awk中分两个文件处理打印内容EN实际过程中一些从软件导出来的配置文件格式格式比较混乱，一般需要整理...