I would like to display all lines from specific line till end of file,
from line which contains a word for example "abc".
How can i do it in bash?

Thanks in advance

AG

Regards,

Moody
PTML.

Regards,

Moody
PTML.

You can do this.

sed -n -e '/abc/,$p' input.txt

In bash it would be

#! /bin/bash
FOUND=0
while read line
do
   [[ "$line" == *abc* ]] && FOUND=1
   [ $FOUND == 1 ] && echo "$line"
done < input.txt

Vino.

awk '/abc/, 0' myfile

You appear to be asking for a pure shell solution:

while read -r -- LINE
do
  [[ "${LINE}" == *abc* ]] && echo "${LINE}"
done < yourFile

Additionally, pure shell implementations of fgrep and grep can be found
at:

  http://www.mtxia.com/fancyIndex/Tools/Scripts/Korn/K93_Unix

Dana French
dfre...@mtxia.com

while IFS="" read -r -- LINE
do
  [[ "${LINE}" == *abc* ]] && echo "${LINE}"
done < yourFile

Dana French
dfre...@mtxia.com

There are trivial ways to do this using external utility programs like
'awk' and 'sed'.  However, you appear to be asking for a 'shell command
only' solution.

Here's one way:

        a=false

        while IFS="" read -r -- LINE
        do
          [[ "${LINE}" == *abc* ]] && a=true
          [[ $a == true ]] && echo "${LINE}"
        done < yourFile

   That will be slower than using awk or sed, and it's not portable.
   If you want to use a shell loop you could be portable, and still
   speed it up (though probably not as fast as awk or sed, depending
   on how far into the file the match occurs):

{
   while IFS="" read -r LINE
   do
     case $LINE in
       *abc*) printf "%s\n" "$LINE"
              break ;;
     esac
   done
   cat

--
   Chris F.A. Johnson, author   |    <http://cfaj.freeshell.org>
   Shell Scripting Recipes:     |  My code in this post, if any,
   A Problem-Solution Approach  |          is released under the
   2005, Apress                 |     GNU General Public Licence

awk '/abc/ { go = 1 }
     go == 1 { print }'

    If you want it shorter:

awk '/abc/{g=1}g'

--
   Chris F.A. Johnson, author   |    <http://cfaj.freeshell.org>
   Shell Scripting Recipes:     |  My code in this post, if any,
   A Problem-Solution Approach  |          is released under the
   2005, Apress                 |     GNU General Public Licence

No shit, sherlock.  <grin>

but he asked 'how can i do it IN BASH', which, _strictly_interpreted_ precludes
using awk or sed.

I didn't suggest that the shell script would be faster.  just that it _was_
a way to do it "according to his requirements'.

'portable' is also moot, when someone *specifies* the 'target environment'. :)

Of course using 'cat' fails a 'pure shell' requirement, too.  :)

aside from that minor matter, I do like your approach.

    If you insist (but see below).

    A portable script also works in the 'target environment'.

    One of the great things about this newsgroup is that solutions are
    frequently given that have a much wider application (whether in
    'target environment' or functionality or whatever) than originally
    requested. This makes the answers useful to many more people than
    just the OP.

  Thank you.

  That approach can also be used with awk for a faster result than awk
  alone (even with an external cat):

{
   awk '/abc/ { print; exit }'
   cat

--
   Chris F.A. Johnson, author   |    <http://cfaj.freeshell.org>
   Shell Scripting Recipes:     |  My code in this post, if any,
   A Problem-Solution Approach  |          is released under the
   2005, Apress                 |     GNU General Public Licence

Wrong, Sherlock.  Note my post.

Are you legally dead?

I would *not* want to trust that one.  All it takes is buffered read
(aka read-ahead) on the part of an awk implementation, and there is
an unpredictable amount of 'lost data' in the output.

Congratulations!  you did get it right.

However, your article had *NOT* made it to the server I was using at
the time I made my posting.  This happens not infrequently with postings
originating from Google groups.

You are, obviously, in practice, if not 'legally', an assh*le.