Unix restriction sur sed

[Vincent_D]

Bonjour,
Je traite un fichier de type csv (séparateur ; ) dans lequel je souhaite éliminer des caractères blanc (plusieurs milliers)
pour ce faire j'utilise la commande

sed -e 's/; */;/g' fic_origin > fic_dest

Pour remplacer (un ; et plusieurs blancs) par (un point virgule unique).
Cela fonctionne bien sur les machines de dev et de test mais, vous l'avez deviné , pas sur la machine de prod.

Est-ce que quelqu'un connaitrait une restriction à l'utilisation de sed (taille des lignes par ex) ?

[iblis]

Tout dépend de la version de sed. Tu peux avoir intérêt à (re-)compiler sed.

6.6. Known limitations among sed versions

   Limits on distributed versions, although source code for most
   versions of free sed allows for modification and recompilation.
   The term "no limit" when used below means there is no "fixed"
   limit. Limits are actually determined by one's hardware, memory,
   operating system, and which C library is used to compile sed.

6.6.1. Maximum line length

      GNU sed 3.02: no limit
      GNU sed 2.05: no limit
      sedmod 1.0:   4096 bytes
      HHsed:        4000 bytes

6.6.2. Maximum size for all buffers (pattern space + hold space)

      GNU sed 3.02: no limit
      GNU sed 2.05: no limit
      sedmod 1.0:   4096 bytes
      HHsed:        4000 bytes

6.6.3. Maximum number of files that can be read with read command

      GNU sed 3.02: no limit
      GNU sed 2.05: total no. of r and w commands may not exceed 32
      sedmod 1.0:   total no. of r and w commands may not exceed 20

6.6.4. Maximum number of files that can be written with 'w' command

      GNU sed 3.02: no limit (but typical Unix is 253)
      GNU sed 2.05: total no. of r and w commands may not exceed 32
      sedmod 1.0:   10
      HHsed:        10

6.6.5. Limits on length of label names

      BSD sed:      8 characters
      GNU sed 3.02: no limit
      GNU sed 2.05: no limit
      HHsed:        no limit

6.6.6. Limits on length of write-file names

      BSD sed:      40 characters
      GNU sed 3.02: no limit
      GNU sed 2.05: no limit
      HHsed:        no limit

6.6.7. Limits on branch/jump commands

      HHsed:        50

   As a practical consequence, this means that HHsed will not read
   more than 50 lines into the pattern space via an N command, even if
   the pattern space is only a few hundred bytes in size. HHsed exits
   with an error message, "infinite branch loop at line {nn}".

Source : http://www.faqs.org/faqs/editor-faq/sed/

[iblis]

Pour contourner le problème (si tu as perl d'installé), tente un :

perl -lpe 's/; */;/g' fic_origin

[Vincent_D]

La solution Perl résoud mon problème. Merci beaucoup.