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help with lil' script

I know this is off topic, but I saw that the programming forum is kind of dead...

So my problem is: I want to repalce from a script the leading path /mnt/cdrom or something else given as an argument and to transform it into some other string...

the problem is with the /-es in the path...

they screw up the sed params....

I tried replacing static text weih the contents of a var and it works ...
the probl is with both vars....

Here is the script...
and is a GNU version 2.... if anybody wants it.

Code:

...... will be in the next post

sed 's#a/source/path/#other/target/path#' < input.txt > output.txt
Or alternatively:
sed 's/a\/source\/path\//other\/target\/path/' < input.txt > output.txt

Yep thats it ToniT! Pe2338 needs to stop the shell from interpretting the "-" as an option to sed. This is most commonly done by preceding the meta-character with a \backslash-

ART

Here is the script ....

tried various ways... obvoious from the comments...

Code:



#!/bin/bash



LL=17                        #Last line of comments 

LC=$(( $LL - 6))        #Length - no of lines of introductory comments

#echo LC este $LC



#This script is inteneded to make a tool for the users that have many CDs,

#that contain scattered info and files and ususally forget where are located.

#

#        Synopsis : cdsearch <--scan <cdname>|--rmcd|--rmpath|--rmfile> [--comment <comment>]

#

#  Options:

#        --scan                : adds a new dir to the colection

#        --rmcd                : removes a cd from the colection (not implemented)

#        --rmpath        : removes a dir from the colection (not implemented)

#        --rmfile        : removes a file from the colection (not implemented)

#

#

#this is the last line of intoructory comments and should NOT be included (LL+1=this line)



if test $# -le 1

then 

    cat $0 | head -n $LL | tail -n $LC | sed s/^\#//

elif test $# -ge 2

then

    

    while (($#>1));

    do

    case "$1" in

            "--scan") 

                OPER=scan

                CDNAME=$2

                shift

                ;;

            "--rmcd"|"--rmpath"|"--rmfile") 

                OPER="not implemented" ;;

            "--comment") 

                COMMENT=$2

                shift ;;

        esac

        shift;

#        echo $*                #Let's see all the params now

#        echo i is $i

    done

    

    # Now we know what to do...

    

    case "$OPER" in

        "not implemented")

            echo operation not implemented

            exit 1

            ;;

        "scan")

            echo "Will try to scan and add a new CD/dir to the collection"

            

            #Let's find out the name of the cd database file and some other info

            if test -e "~/cdtool.conf";

            then

                CDDRIVE=`cat ~/cdtool.conf | grep CDDRIVE | sed s/^\ *CDDRIVE\ *\=\ *//`

                COLLECTION=`cat ~/cdtool.conf | grep DATABASE | sed s/^\ *DATABASE\ *\=\ *//`;

            else

                CDDRIVE=/mnt/cdrom

                COLLECTION=~/.cdtool/cddbase



                echo

                echo Drive : $CDDRIVE    Collection : $COLLECTION  CDName : $CDNAME

                echo

                



                if (test ! -d ~/.cdtool) ;

                then

                    mkdir ~/.cdtool;

                fi

                touch "$COLLECTION" ;

            fi

            

            echo -n "Starting $CDDRIVE path scan..."

            

            echo            

    

            #TMP=`mktemp`

            #rm -f "$TMP"

            #TMP=`echo $TMP | cut -d'/' -f3-`

            #echo "$TMP" 

            #read

            

#            echo "\"$CDDRIVE\"" "\"$CDNAME\""



#            echo "$CDDRIVE" | sed s/"\/"/'XXXX'/



            CD=`echo "\\\"\"$CDDRIVE\\\"\"" ` #| sed s/"\/"/"\\\/"/ | sed s/"^"/"\""/`

#            echo $CD

            

#            echo "/mnt/cdrom" | sed --file="./add" 

            



#            echo $CDDRIVE | sed s/$CD/"\\\"$CDNAME\\\" - "/ 

            echo $CDDRIVE | sed s/"\/mnt\/cdrom"/"\\\"$CDNAME - \\\""/ 

#            CN=`echo $CDNAME | tr "/" "\\\/" | tr ' ' "\\\ "`

#            echo $CDNAME | tr "/" "\\\/" | tr ' ' "\\\ "

#            CMD="sed s/\(\"$CD\"\)/\(\"$CN\"\)/"

            

#            echo $CMD $CD $CN

            read            

#            find $CDDRIVE -true -noleaf | cut -d'/' -f$FF- | sed s/\("$CD"\)/\("$CN"\)/  # | cat >>$COLLECTION

#            echo "done."

            

            ;;

    esac

    

fi

Quote:

Originally posted by ToniT
sed 's#a/source/path/#other/target/path#' < input.txt > output.txt
Or alternatively:
sed 's/a\/source\/path\//other\/target\/path/' < input.txt > output.txt

The quotes stop the text within them to be interpreted, but I need that...

As you can see the heading is in a var $CDDRIVE and the replace is in $CDNAME....

Thanks fo the help ...

Ok,

I'm sorry, but there are so many tries that I don't follow what are you exactly trying to do and what is the problem with it.

Want to have a sed script that doesn't choke to slashes?

Use an other separator, like the # as used in my previous example or as

Code:

echo foo/bar/baz | sed s#foo/#ubl/e#
Want to have variables that are pre-substituted to the sed expression by shell?

Don't use single quotes or leave variables out of quotes.

Code:

export JEE='joo/jaa' ; echo foo/bar/baz | sed "s#foo/#ubl/|$JEE|e#" or export JEE='joo/jaa' ; echo foo/bar/baz | sed 's#foo/#ubl/|'"$JEE"'|e#'
Want something else, what?