摘要： http://www.tutorialspoint.com/unix_commands/awk.htmNAMEgawk - pattern scanning and processing languageSYNOPSISgawk[POSIXorGNUstyle options ]-fprogram-file[--] file ...gawk[POSIXorGNUstyle options ] [--]program-textfile ...pgawk[POSIXorGNUstyle options ]-fprogram-file[--] file ...pgawk[POSIXorGNUstyl 阅读全文

摘要： http://how-to.linuxcareer.com/learning-linux-commands-awk1.IntroductionIn this case, the title might be a little misleading. And that is because awk is more than a command, it's a programming language in its own right. You can write awk scripts for complex operations or you can use awk from the 阅读全文

摘要： http://www.grymoire.com/unix/sed.htmlQuick Links - NEWSed Commands: label# comment{....} Block=- print line numbera \- Appendb label- Branchc \ - changedandD- DeletegandG- GethandH- Holdi \- Insertl- LooknandN- NextpandP- Printq- Quitr filename- Read Files/..../..../- Substitutet label- Testw filena 阅读全文

摘要： http://www.win.tue.nl/~aeb/linux/lk/lk-12.html12.Handling of asynchronous eventsOne wants to be notified of various events, like data that has become available, files that have changed, and signals that have been raised. FreeBSD has the nicekqueueAPI. Let us discuss the Unix/Linux situation.It is ea 阅读全文