Diapositive PPT
- recherche de motifs dans un fichier texte (rappels infra)
cut (ex en suivant le lien)
- effectue la projection d'un fichier selon une colonne
- cut writes to standard output selected parts of each line of each input file, or standard input if no files are given or for a file name of `-'. Synopsis:
- cut [option]... [file]...
tr (ex en suivant le lien)
- effectue des remplacements de caractères
- tr [option]... set1 [set2]
- tr copies standard input to standard output, performing one of the following operations:
- translate, and optionally squeeze repeated characters in the result,
- squeeze repeated characters,
- delete characters,
- delete characters, then squeeze repeated characters from the result.