译文出处:https://www.zcfy.cc/article/how-to-use-awk-to-print-fields-and-columns-in-file via: http://www.tecmint.com/awk-print-fields-columns-with-space-separator/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+tecmint+%28Tecmint%3A+Linux+Howto%27s+Guide%29 作者:Aaron Kili...
https://www.tecmint.com/awk-print-fields-columns-with-space-separator/
Theawkis a powerful Linux command line tool, that can process the input data as columns. In the following note i will show how to print columns by numbers – first, second, last, multiple columns etc. I will show how to change the default field separator inawk. At the end of this ar...
#awk-F':''{print "filename:" FILENAME ",linenumber:" NR ",columns:" NF ",linecontent:"$0}'/etc/passwdfilename:/etc/passwd,linenumber:1,columns:7,linecontent:root:x:0:0:root:/root:/bin/bash filename:/etc/passwd,linenumber:2,columns:7,linecontent:daemon:x:1:1:daemon:/usr/sbin...
$ awk -F ':' '{printf("filename:%10s,linenumber:%s,columns:%s,linecontent:%s\n",FILENAME,NR,NF,$0)}' /etc/passwd 1. 2. 3. while循环: $ awk 'BEGIN{ test=100; total=0; while(i<=test) { total+=i; i++; } print total; }' ...
awk '{print "filename:" FILENAME ",linenumber:" NR ",columns:" NF ",linecontent:"$0}' awktest.log filename:awktest.log,linenumber :1,columns :6,linecontent: MMAN started with pid=9, OS id=22862 --只显示一行,后面行省略了
In this article, we will explore how to leverage Awk to print fields and columns, providing practical examples and explanations to demonstrate its effectiveness. In Awk, a “field” refers to a specific segment of text within a line, delimited by a predefined separator such as a space, tab,...
Split Pipe-Separated Columns For a pipe-separated dataset like: A1|B1|C1 A2|B2|C2 A3|B3|C3 Set the field separator to a pipe: awk -F'|' '{ split($1, a, "-"); split($2, b, "-"); print a[1], a[2], b[1], b[2], $3 ...
$ awk '{ print $1 }' FS='\t' input.txt Output:Using OFS variable with tab The following awk command will print the 9th and 5th fields of ‘ls -l’ command output with tab separator after printing the column title “Name” and “Size”. Here, OFS variable is used to format the ...
panel 3: extract a column.of text with awkawk -F, '{print $5}' the comma is the column separator the ‘ is a single quote! {print $5} means print the 5th columnperson: this is 99% of what I do with awkpanel 4:SO MANY Unix commands print columns of text (ps! Is!)...