I do need help understanding what this means!!

[michealbantor]

[# command for gathering Listener Log

set v_listener_command "; echo ' Listener Log' | tr '\\n' ':'; echo '' | tr '\\n' ' ' ; lsnrctl status | grep Log | awk '{ print \$4 }' | sed 's/alert\\/log.xml/trace\\/listener.log/g' | tr '\\n' ' '; echo '-' | tr '\\n' ' ' ; du -sk `lsnrctl status | grep Log | awk '{ print \$4 }' | sed 's/alert\\/log.xml/trace\\/listener.log/g'` | awk '{ print \$1 }' | tr '\\n' ' ' ; echo '(KB)'"]

 

[ChrisHirst]

For the awk print commands;

https://www.gnu.org/software/gawk/manual/html_node/Print-Examples.html

Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.

Never mind this jesus character, stars had to die for me to live.

 

[michealbantor]

Please i am looking for a command by command explanation if possible please.

 

[ChrisHirst]

forum619 would be the place for that as this forum is for AWK related queries in particular rather than general Linux shell questions.


Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.

Never mind this jesus character, stars had to die for me to live.

 

[ChrisHirst]

but as a quick guide for all shell commands use the 'man' (online manual) command.

In a terminal session type in "man 'command you want to know about'" (without quotes).

For example:

man du (disc usage display)

will get this

DU(1) User Commands DU(1)

NAME
du - estimate file space usage

SYNOPSIS
du [OPTION]... [FILE]...
du [OPTION]... --files0-from=F

DESCRIPTION
Summarize disk usage of the set of FILEs, recursively for directories.

Mandatory arguments to long options are mandatory for short options too.

-0, --null
end each output line with NUL, not newline

-a, --all
write counts for all files, not just directories

--apparent-size
print apparent sizes, rather than disk usage; although the apparent size is usually smaller, it may be larger due to holes in ('sparse')
files, internal fragmentation, indirect blocks, and the like

-B, --block-size=SIZE
scale sizes by SIZE before printing them; e.g., '-BM' prints sizes in units of 1,048,576 bytes; see SIZE format below

-b, --bytes
equivalent to '--apparent-size --block-size=1'

-c, --total
produce a grand total

-D, --dereference-args
dereference only symlinks that are listed on the command line

-d, --max-depth=N
print the total for a directory (or file, with --all) only if it is N or fewer levels below the command line argument; --max-depth=0 is the
same as --summarize

Chris.

Indifference will be the downfall of mankind, but who cares?
Time flies like an arrow, however, fruit flies like a banana.

Never mind this jesus character, stars had to die for me to live.

 

[johnherman]

You could also ask the question in the Unix scripting forum.

https://www.tek-tips.com/threadminder.cfm?pid=822

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