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Shell Programming and Scripting
script to delete lines from a txt file if pattern matches
Post 302503600 by penchal_boddu on Friday 11th of March 2011 04:06:23 AM
03-11-2011
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Hi,
I have a test file name test.txt with its contents
string
21345
qwee
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i need to delete all the words except the word STRING
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cat test.txt | sed 's/^..*$/**/g'
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strinn
strriin
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LEARN ABOUT DEBIAN
timetrans
TIMETRANS(1p) User Contributed Perl Documentation TIMETRANS(1p) NAME
timetrans - Converts time into time SYNOPSIS
timetrans [units-options] [-count] DESCRIPTION
timetrans converts time from one type of unit to another. If any of the units options are specified, then timetrans will convert those time units into the number of seconds to which they add up. If given the count option, timetrans will convert that number of seconds into the appropriate number of weeks, days, hours, minutes, and seconds. The converted result is printed out. Units options cannot be specified in the same execution as the count option, and vice versa. timetrans is intended for use with DNSSEC-Tools, for calculating a zone's expiration time. OPTIONS
Units Options The converted value of each unit is totaled and a single result printed. -seconds seconds Count of seconds to convert to seconds. -minutes minutes Count of minutes to convert to seconds. -hours hours Count of hours to convert to seconds. -days days Count of days to convert to seconds. -weeks weeks Count of weeks to convert to seconds. Count Option The specified seconds count is converted to the appropriate number of weeks, days, hours, minutes, and seconds. -count seconds Count of seconds to convert to the appropriate set of units. Other Options timetrans has the following miscellaneous options. -Version Displays the version information for timetrans and the DNSSEC-Tools package. EXAMPLES
Example 1: Converting 5 days into seconds $(42)> timetrans -days 5 432000 Example 2: Converting 2 weeks into seconds $(43)> timetrans -w 2 1209600 Example 3: Converting 8 days and 8 hours into seconds $(44)> timetrans -d 8 -hours 8 720000 Example 4: Converting 1 week, 1 day, and 8 hours into seconds $(46)> timetrans -w 1 -days 1 -h 8 720000 Example 5: Converting 14 weeks, 4 days, 21 hours, 8 minutes, and 8 seconds into seconds $(47)> timetrans -w 14 -d 4 -h 21 -m 8 -s 8 8888888 Example 6: Converting 720000 seconds into time units $(48)> timetrans -c 720000 1 week, 1 day, 8 hours Example 7: Converting 1814421 seconds into time units $(49)> timetrans -c 1814421 3 weeks, 21 seconds Example 8: Converting 8888888 seconds into time units $(50)> timetrans -c 8888888 14 weeks, 4 days, 21 hours, 8 minutes, 8 seconds COPYRIGHT
Copyright 2004-2012 SPARTA, Inc. All rights reserved. See the COPYING file included with the DNSSEC-Tools package for details. AUTHOR
Wayne Morrison, tewok@tislabs.com SEE ALSO
zonesigner(8) Net::DNS::SEC::Tools::timetrans.pm(3) perl v5.14.2 2012-06-21 TIMETRANS(1p)