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Full Discussion: Removing lines from a file
Top Forums Shell Programming and Scripting Removing lines from a file Post 303013331 by kristinu on Monday 19th of February 2018 07:25:35 PM
Old 02-19-2018
Removing station data ptcc, nov
Apologies Don

---------- Post updated at 05:54 PM ---------- Previous update was at 05:43 PM ----------

And I am using GNU Trisquel

This seems to work when I try to remove filenames with data recorded from the specified station names.

Code:
arg_delstn="ptcc nov"
IFS=' ' read -r -a delstn <<< "$arg_delstn"
for stn in "${delstn[@]}"
do
  rgx="/${stn}/d" 
  echo "sed -i $rgx /tmp/wrk"
  sed -i $rgx /tmp/wrk
done

Removing days in ranges is quite a challenge. No good ideas yet.

---------- Post updated at 07:25 PM ---------- Previous update was at 05:54 PM ----------

For some reason the following removed me all the filenames

Code:
for day in {1..207}
do    
  if (( day < 10 )); then
    daytag="00$day" 
  elif (( day < 100 )); then
    daytag="0$day" 
  else
    daytag="$day"
  fi
  rgx="/.${daytag}/d" 
  echo "sed -i $rgx /tmp/wrk"
  sed -i $rgx /tmp/wrk  
done

for day in {282..356}
do    
  if (( day < 10 )); then
    daytag="00$day" 
  elif (( day < 100 )); then
    daytag="0$day" 
  else
    daytag="$day"
  fi
  rgx="/.${daytag}/d" 
  echo "sed -i $rgx /tmp/wrk"
  sed -i $rgx /tmp/wrk  
done

Last edited by kristinu; 02-19-2018 at 07:21 PM.. Reason: Example
 

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LEARN ABOUT SUSE

split

SPLIT(1)							   User Commands							  SPLIT(1)

NAME

       split - split a file into pieces

SYNOPSIS

       split [OPTION]... [INPUT [PREFIX]]

DESCRIPTION

       Output  fixed-size  pieces  of  INPUT to PREFIXaa, PREFIXab, ...; default size is 1000 lines, and default PREFIX is `x'.  With no INPUT, or
       when INPUT is -, read standard input.

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

       -a, --suffix-length=N
	      use suffixes of length N (default 2)

       -b, --bytes=SIZE
	      put SIZE bytes per output file

       -C, --line-bytes=SIZE
	      put at most SIZE bytes of lines per output file

       -d, --numeric-suffixes
	      use numeric suffixes instead of alphabetic

       -l, --lines=NUMBER
	      put NUMBER lines per output file

       --verbose
	      print a diagnostic just before each output file is opened

       --help display this help and exit

       --version
	      output version information and exit

       SIZE may have a multiplier suffix: b 512, kB 1000, K 1024, MB 1000*1000, M 1024*1024, GB 1000*1000*1000, G 1024*1024*1024, and so on for T,
       P, E, Z, Y.

AUTHOR

       Written by Torbjorn Granlund and Richard M. Stallman.

REPORTING BUGS

       Report split bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>

COPYRIGHT

       Copyright (C) 2009 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       The  full  documentation  for split is maintained as a Texinfo manual.  If the info and split programs are properly installed at your site,
       the command

	      info coreutils 'split invocation'

       should give you access to the complete manual.

GNU coreutils 7.1						     July 2010								  SPLIT(1)
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