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Shell Programming and Scripting
Join Lines every paragraph in a file.txt
Post 302983264 by lxdorney on Sunday 9th of October 2016 08:34:46 AM
10-09-2016
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1. Shell Programming and Scripting
I've looked at the join command which is able to perform what I need on two rows with a common field, however if I have more than two rows I need to join all of them.
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1 randomtext1
2 rtext2
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Output text from 1st paragraph in file w/ a specific string through last paragraph of file w/ string
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HI all,
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I have a diff command that does what I want but when comparing large text/log files, it uses up all the memory I have (sometimes over 8gig of memory)
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---------------------------------------------------------------
26
00:04:48,440 --> 00:04:51,440
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Hello UNIX gurus, I am new to the world of UNIX. Hopefully I am submitting my question at the right forum. Here is my dilemma -
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Hi
I have a file with contents:
NAMES
John
carrey
williams
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Hi Guys,
Could you please advise how to join multiple details lines into single row, with HEADER 1 as the record separator and comma(,) as the field separator.
Input:
HEADER 1, HEADER 2, HEADER 3,
11,22,33,
COLUMN1,COLUMN2,COLUMN3,
AA1, BB1, CC1,
END: ABC
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LEARN ABOUT OPENSOLARIS
volcheck
volcheck(1) User Commands volcheck(1) NAME
volcheck - checks for media in a drive and by default checks all floppy media SYNOPSIS
volcheck [-v] [-i secs] [-t secs] pathname DESCRIPTION
The volcheck utility tells volume management to look at each dev/pathname in sequence and determine if new media has been inserted in the drive. The default action is to volcheck all checkable media managed by volume management. OPTIONS
The following options are supported: -i secs Set the frequency of device checking to secs seconds. The default is 2 seconds. The minimum frequency is 1 second. -t secs Check the named device(s) for the next secs seconds. The maximum number of seconds allowed is 28800, which is 8 hours. The fre- quency of checking is specified by -i. There is no default total time. -v Verbose. OPERANDS
The following operands are supported: pathname The path name of a media device. EXAMPLES
Example 1 A sample of the volcheck command. The following example example% volcheck -v /dev/diskette /dev/diskette has media asks volume management to examine the floppy drive for new media. The following example example% volcheck -i 2 -t 600 /dev/diskette1 & asks volume management if there is a floppy in the floppy drive every 2 seconds for 600 seconds (10 minutes). FILES
/dev/volctl volume management control port ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWvolu | +-----------------------------+-----------------------------+ SEE ALSO
eject(1), rmmount(1M), attributes(5) WARNINGS
Due to a hardware limitation in many floppy drives, the act of checking for media causes mechanical action in the floppy drive. Continu- ous polling of the floppy drive will cause the drive to wear out. It is recommended that polling the drive only be performed during periods of high use. SunOS 5.11 28 Feb 2007 volcheck(1)