bash - Rename folder with name consisting of multiple words -

for begining have such script:

#!/bin/bash  in *; if [ -d "$i" ];     if [ "$i" == $(grep $i names.txt | cut -d ' ' -f 1) ];         mv $i $(grep $i names.txt | cut -d ' ' -f 2)     else         echo "the word $i wasn't found in dictionary"     fi fi done 

which renames files dictionary (names.txt) line of pattern "english_word german_one".

one eins 2 zwei mein dein 

the problem is: works files names one-wordish. "one" becomes "eins", "two" becomes "zwei", "one two" doesn't become "eins zwei". how rename files names consisting more 1 word, e.g "my documents", "first folder", etc? know must somehow tokenize folder name, don't how. new bash. in advance.

here's pure bash solution rather general: we'll tokenize folder name , perform translation on each word found in name. before that, we'll load dictionary hash array:

#!/bin/bash  # load dictionary declare -a dictionary=() while read -r eng ger;     [[ $eng ]] && [[ $ger ]] || continue     dictionary[$eng]=$ger done < dictionary_file  tokenize() {     # split $1 2 arrays:     # tokenize_sep consists of non-alpha strings     # tokenize_alpha consists of alpha strings     # have: $1=${tokenize_sep[0]}${tokenize_alpha[0]}${tokenize_sep[1]}${tokenize_alpha[1]} ...     local var=$1     tokenize_sep=() tokenize_alpha=()     while [[ $var ]];         [[ $var =~ ([^[:alpha:]]*)(.*) ]]         tokenize_sep+=( "${bash_rematch[1]}" )         var=${bash_rematch[2]}         [[ $var =~ ([[:alpha:]]*)(.*) ]]         tokenize_alpha+=( "${bash_rematch[1]}" )         var=${bash_rematch[2]}     done }  translate_ary() {     # translates each word given arguments according hash array dictionary     # returned array translate_ary_ret     local w t     translate_ary_ret=()     w;         if [[ $w ]];             t=${dictionary[$w]}             [[ $t ]] || t=$w         else             t=         fi         translate_ary_ret+=( $t )     done }  intertwine() {     # $1 , $2 2 array names     # returns string intertwine_ret consists of fields of $1 , $2 intertwined (shuffled)     local ary1=$1[@] ary2=$2[@]     ary1=( "${!ary1}" ) ary2=( "${!ary2}" )     intertwine_ret=     for((i=0;i<${#ary1[@]};++i));         intertwine_ret+=${ary1[i]}${ary2[i]}     done }  translate() {     # translates string given in $1, preserving separators     # return string in translate_ret     tokenize "$1"     translate_ary "${tokenize_alpha[@]}"     intertwine tokenize_sep translate_ary_ret     translate_ret=$intertwine_ret }  # renaming:  in *;     translate "$i"     [[ $i = "$translate_ret" ]] && continue     echo mv -nv -- "$i" "$translate_ret" done 

it's not one-liner, should job.

i called script banana, chmod +x and:

$ ls -1 banana banana_is_my_favorite_fruit dictionary_file --one..my^ your-banana.one one_two_bananas your_two...pdf $ ./banana mv -nv -- banana_is_my_favorite_fruit banana_is_mein_favorite_fruit mv -nv -- --one..my^ your-banana.one --eins..mein^ dein-banana.eins mv -nv -- one_two_bananas eins_zwei_bananas mv -nv -- your_two...pdf dein_zwei...pdf 

nothing has been moved: this, remove echo in front of mv command @ bottom of script.