Aia, sorry for the confusion. Corrected input from initial post.
Ideally I want to select
all lines from XML until </notify-list> & <application> XML block matching search string say myapp1-ear.
I see you have corrected the input xml from post #1.
This is how your xml looks like, by turning the showing tabs:
All those ^I is a tab. The indentation is a mix between normal spaces and tabs.
Your latest request "appears" to be to select from XML each line until </notify-list> and <application> and stop. That does not make much sense, since it would yield:
I am going to guess you want this:
or maybe this:
Don ed solution worked great.. I never used it, I need to understand how its working. syntax looks very close to sed. I wish I could use a single like sed for this.
Hi, sed was based on ed; ed came first. ed can do forwards and backwards searches; sed can't do backwards searches. The syntax for the ed g command is:
It tells ed to identify every line in the file that matches the basic regular expression BRE and for each line found, execute command on that line. And command in this case is:
where p is the print command which takes zero, one, or two addresses to specify a range of lines to be printed. (No addresses prints the current line; one address prints the addressed line, and two addresses (separated by a comma) prints the lines from the 1st address up to and including the 2nd address.) The address specified by ?BRE1? searches for the line matching the basic regular expression BRE1 backwards from the current line and (as with sed) /BRE2/ searches forwards from the current line for a line matching the basic regular expression BRE2.
With your new sample input, the ed script I suggested should still print the lines you want. And, if you like to write less portable, 1-liners instead of code that will work with any POSIX-conforming shell, you can translate this to:
The above works with both 1993 or later versions of ksh and bash, but is a syntax error for many other POSIX-compliant shells.
And, if you want to strip two <tab> characters from the front of each of those lines, you could use:
You could turn that into a 2-liner, but I much prefer readable and maintainable code to the minimal line approach.
This User Gave Thanks to Don Cragun For This Post:
You're making it much more difficult than it needs to be. The ed commands needed to print the header and the trailer are identical to the sed commands you need to do the same thing. And, there is no need for three invocations of ed to get the output you want. Try:
Note that the <space> before the p on the next to the last line in the ed script is not an accident and must not be removed. (If you don't understand why, ask.)
But, the output you say you want in post #12 does not match the spacing in your latest update to your input now shown in post #1. The code above preserves the blanks (spaces in the first few lines and tabs in the last few lines) found in your input file in the output it produces:
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