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Full Discussion: awk/sed with special characters
Top Forums Shell Programming and Scripting awk/sed with special characters Post 20792 by apalex on Friday 3rd of May 2002 05:31:33 PM
Old 05-03-2002
Thanks Perderabo!

i tried your code and it works great. although i had an error
when i entered the string df/DF.

apalex>cat infile
pattern1 $Major
pattern2 -Crit
pattern3 df/DF
pattern4 h'405
pattern5 \ffe
pattern6 ab >
pattern7 abc >>
pattern8 A"a"
pattern9 `0de`

apalex> cat whereis
#! /usr/bin/ksh
IFS=""
print -n "enter search string -"
read string
sed -n '/'"${string}"'/=' < infile
exit 0

apalex> whereis
enter search string -df/DF
sed: command garbled: /df/DF/=
apalex>

I just thought its easier to type the string on the
command line, so i tried to insert your code in
my script but it really gives me a lot of errors...

apalex> cat whereis1
#!/bin/ksh
case $# in
0) echo "\n\t No pattern(s) entered! Try again."
echo "\t Usage: whereis1 pattern1 [pattern2]"
exit 1 ;;
*) sed -n '/'"${*}"'/=' < infile
exit 0 ;;
esac

it doesn't work on patterns:
$Major, ab > and abc >>

I really appreciate this forum, gives me a chance to improve my
skills. Thanks a lot guys!!!
 

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LEARN ABOUT REDHAT

whereis

WHEREIS(1)						      General Commands Manual							WHEREIS(1)

NAME

       whereis - locate the binary, source, and manual page files for a command

SYNOPSIS

       whereis [ -bmsu ] [ -BMS directory...  -f ] filename ...

DESCRIPTION

       whereis	locates  source/binary and manuals sections for specified files.  The supplied names are first stripped of leading pathname compo-
       nents and any (single) trailing extension of the form .ext, for example, .c.  Prefixes of s.  resulting from use of source code control are
       also dealt with.  whereis then attempts to locate the desired program in a list of standard Linux places.

OPTIONS

       -b     Search only for binaries.

       -m     Search only for manual sections.

       -s     Search only for sources.

       -u     Search  for  unusual  entries.   A  file	is  said  to  be  unusual  if  it  does  not  have one entry of each requested type.  Thus
	      `whereis	-m  -u	*' asks for those files in the current directory which have no documentation.

       -B     Change or otherwise limit the places where whereis searches for binaries.

       -M     Change or otherwise limit the places where whereis searches for manual sections.

       -S     Change or otherwise limit the places where whereis searches for sources.

       -f     Terminate the last directory list and signals the start of file names, and must be used when any of the -B, -M, or  -S  options  are
	      used.

EXAMPLE

       Find all files in /usr/bin which are not documented in /usr/man/man1 with source in /usr/src:

	      example% cd /usr/bin
	      example% whereis -u -M /usr/man/man1 -S /usr/src -f *

FILES

       /{bin,sbin,etc}

       /usr/{lib,bin,old,new,local,games,include,etc,src,man,sbin,
			   X386,TeX,g++-include}

       /usr/local/{X386,TeX,X11,include,lib,man,etc,bin,games,emacs}

SEE ALSO

       chdir(2V)

BUGS

       Since whereis uses chdir(2V) to run faster, pathnames given with the -M, -S, or -B must be full; that is, they must begin with a `/'.

       whereis has a hard-coded path, so may not always find what you're looking for.

								    8 May 1994								WHEREIS(1)
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