Help to change the file with "sed" and "awk" Post: 302404414

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Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Hi Friends, Can any of you explain me about the below line of code? mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'` Im not able to understand, what exactly it is doing :confused: Any help would be useful for me. Lokesha

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Input file: 2 aux003.net3.com error12 6 awn0117.net1.com error13 84 aux008 error14 29 aux001.ha.ux.isd.com error12 209 aux002.vm.ux.isd.com error34 21 alx0027.vm.net2.com error12 227 dux001.net5.com error123 22 us008.dot.net2.com error121 13 us009.net2.com error129Expected Output: 2...

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6. Post Here to Contact Site Administrators and Moderators

Suggestion: adding two new groups "sed" and "awk"

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LEARN ABOUT DEBIAN

go-build

GO-BUILD(1)						      General Commands Manual						       GO-BUILD(1)

NAME

       go - tool for managing Go source code

SYNOPSIS

       go build [-o output] [ build flags ] [ packages ]

DESCRIPTION

       Build compiles the packages named by the import paths, along with their dependencies, but it does not install the results.

       If the arguments are a list of .go files, build treats them as a list of source files specifying a single package.

       When the command line specifies a single main package, build writes the resulting executable to output.	Otherwise build compiles the pack-
       ages but discards the results, serving only as a check that the packages can be built.

       The -o flag specifies the output file name.  If not specified, the name is packagename.a (for a non-main package) or the base name  of  the
       first source file (for a main package).

OPTIONS

       The build flags are shared by the build, install, run, and test commands:

       -a     force rebuilding of packages that are already up-to-date.

       -n     print the commands but do not run them.

       -p n   the number of builds that can be run in parallel. The default is the number of CPUs available.

       -v     print the names of packages as they are compiled.

       -work  print the name of the temporary work directory and do not delete it when exiting.

       -x     print the commands.

       -compiler name
	      name of compiler to use, as in runtime.Compiler (gccgo or gc)

       -gccgoflags 'arg list'
	      arguments to pass on each gccgo compiler/linker invocation

       -gcflags 'arg list'
	      arguments to pass on each 5g, 6g, or 8g compiler invocation

       -ldflags 'flag list'
	      arguments to pass on each 5l, 6l, or 8l linker invocation

       -tags 'tag list'
	      a  list  of  build tags to consider satisfied during the build.  See the documentation for the go/build package for more information
	      about build tags.

       For more about specifying packages, see go-packages(7).

       For more about where packages and binaries are installed, see go-gopath(1).

SEE ALSO

       go-install(1), go-get(1), go-clean(1).

AUTHOR

       This manual page was written by Michael Stapelberg <stapelberg@debian.org>, for the Debian project (and may be used by others).

								    2012-05-13							       GO-BUILD(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Explain the line "mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`"

Discussion started by: Lokesha

2. Shell Programming and Scripting

cat $como_file | awk /^~/'{print $1","$2","$3","$4}' | sed -e 's/~//g'

Discussion started by: harshakusam

3. Shell Programming and Scripting

Simplify Bash Script Using "sed" Or "awk"

Discussion started by: sQew

4. Shell Programming and Scripting

awk command to replace ";" with "|" and ""|" at diferent places in line of file

Discussion started by: shis100