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Full Discussion: Grep start and end line of each segments in a file
Top Forums Shell Programming and Scripting Grep start and end line of each segments in a file Post 302915769 by Veera_V on Thursday 4th of September 2014 02:47:22 PM
Old 09-04-2014
Hammer & Screwdriver Grep start and end line of each segments in a file
Cat file1

Code:
--------
----------
SCHEMA.TABLE1
insert-------
update-----
-------------
----------
SCHEMA.TABLE2
insert-------
update-----
-----------
------------
SCHEMA.TABLE3
insert-------
update-----
------------

grep -n SCHEMA > header_file2.txt

Code:
1: SCHEMA.TABLE1  
25:SCHEMA.TABLE2 
30:SCHEMA.TABLE3

I need to print values of each schema content to temp file.

Code:
sed -n '1,24p' file1.txt > file.tmp$$

sed -n '25,29p' file1.txt > file.tmp$$


Question is how can I get the start and ending line in the header file.so h that I can use with sed to place each table contents into file.


Code:
1: SCHEMA.TABLE1  (1-24)
25:SCHEMA.TABLE2  (25-29)
30:SCHEMA.TABLE3  (30-end)

I have below idea but its kind of making it complex. (syntax may not correct)

Code:
1:1:SCHEMA.TABLE1  
2:25:SCHEMA.TABLE2
3:30:SCHEMA.TABLE3

start=1
start1=expr `$start+1`

end=expr `head -$start1 file1 |tail-1 |cut-d':' -f2`-1  (24) 

sed '1, $end' > tmp

start=2
start1=expr `$start+1`

end=expr`head -3 $start1 |tail-1 |cut-d':' -f2`-1  (29)

sed '1, $end' > tmp


Regards,
Veera
Last edited by Corona688; 09-04-2014 at 04:24 PM..
 

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LEARN ABOUT CENTOS

gsettings

GSETTINGS(1)							   User Commands						      GSETTINGS(1)

NAME

       gsettings - GSettings configuration tool

SYNOPSIS

       gsettings get SCHEMA [:PATH]  KEY

       gsettings monitor SCHEMA [:PATH]  [KEY]

       gsettings writable SCHEMA [:PATH]  KEY

       gsettings range SCHEMA [:PATH]  KEY

       gsettings set SCHEMA [:PATH]  KEY VALUE

       gsettings reset SCHEMA [:PATH]  KEY

       gsettings reset-recursively SCHEMA [:PATH]

       gsettings list-schemas

       gsettings list-relocatable-schemas

       gsettings list-keys SCHEMA [:PATH]

       gsettings list-children SCHEMA [:PATH]

       gsettings list-recursively [SCHEMA [:PATH]]

       gsettings help [COMMAND]

DESCRIPTION

       gsettings offers a simple commandline interface to GSettings. It lets you get, set or monitor an individual key for changes.

       The SCHEMA and KEY arguments are required for most commands to specify the schema id and the name of the key to operate on. The schema id
       may optionally have a :PATH suffix. Specifying the path is only needed if the schema does not have a fixed path.

       When setting a key, you also need specify a VALUE The format for the value is that of a serialized GVariant, so e.g. a string must include
       explicit quotes: "'foo'". This format is also used when printing out values.

COMMANDS

       get
	   Gets the value of KEY. The value is printed out as a serialised GVariant.

       monitor
	   Monitors KEY for changes and prints the changed values. If no KEY is specified, all keys in the schema are monitored. Monitoring will
	   continue until the process is terminated.

       writable
	   Finds out whether KEY is writable.

       range
	   Queries the range of valid values for KEY.

       set
	   Sets the value of KEY to VALUE. The value is specified as a serialised GVariant.

       reset
	   Resets KEY to its default value.

       reset-recursively
	   Reset all keys under the given SCHEMA.

       list-schemas
	   Lists the installed, non-relocatable schemas. See list-relocatable-schemas if you are interested in relocatable schemas.

       list-relocatable-schemas
	   Lists the installed, relocatable schemas. See list-schemas if you are interested in non-relocatable schemas.

       list-keys
	   Lists the keys in SCHEMA.

       list-children
	   Lists the children of SCHEMA.

       list-recursively
	   Lists keys and values, recursively. If no SCHEMA is given, list keys in all schemas.

       help
	   Prints help and exits.

GIO
																      GSETTINGS(1)
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