linux - append string to file name when string is missing -


i'm trying append string file name , each time string missing.

example :

i have 

idbank.xls idbank.xls idbank.xls

i'm looking string 

codegroup

as string not exist, i'm appending file name before extension. required output be

idbankxxxcodegroupea1111.xls idbankxxxcodegroupea1111.xls idbankxxxcodegroupea1111.xls

i made script (see below) not working properly

for file in idbank*.xls;  if $(ls | grep -v 'codegroupe' $file);   printf '%s\n' "${f%.xls}codegroupea1111.xls"  fi; done

the grep -v check if string here or not. read on different post can use option -q in checking man , says silent...

any suggestions helpful.

best

this can make it:

for file in idbank*xls   [[ $file != *codegroup* ]] && mv $file ${file%.*}codegroup.${file##*.} done
  • the for file using.
  • [[ $file != *codegroup* ]] checks if file name contains codegroup or not.
  • if not, mv $file ${var%.*}codegroup.${var##*.} performed: renames file moving filename_without_extension + codgroup + extension (further reference in extract filename , extension in bash).

note 

[[ $file != *codegroup* ]] && mv $file ${file%.*}codegroup.${file##*.}

is same as:

if [[ $file != *codegroup* ]];   mv $file ${file%.*}codegroup.${file##*.} fi

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