scr

TP06/tp06-reponses.txt

@@ -0,0 +1,57 @@
+Notes : 
+Avec ls-d : 
+- * => n'importe quelle chaine de caractères
+- ? => un caractère unique quelconque
+
+-[[:upper:]] Maj
+-[[ :lower: ]] Minuscule
+-[[:digit:]] chiffre
+I.                                                                                                          
+
+    1.ls -d GLOB/gLob/*[[:upper:]] -> Affiche : GLOB/gLob/44patterN
+
+    2.ls -d GLOB/*[[:upper:]]*
+
+    3ls -d GLOB/?[[:digit:]]* GLOB/gLob/?[[:digit:]]*
+
+    4.ls -d GLOB/*[[:digit:]][[:digit:]]*
+
+
+    (on finiras au prochain TP)
+
+
+II.
+
+shopt : shopt [-pqsu] [-o] [optname ...]
+              Toggle  the  values  of  settings  controlling optional shell behavior.  The settings can be either those
+              listed below, or, if the -o option is used, those available with the -o option to the  set  builtin  com‐
+              mand.  With no options, or with the -p option, a list of all settable options is displayed, with an indi‐
+              cation  of  whether  or  not each is set; if optnames are supplied, the output is restricted to those op‐
+              tions.  The -p option causes output to be displayed in a form that may be reused as input.  Other options
+              have the following meanings:
+              -s     Enable (set) each optname.
+              -u     Disable (unset) each optname.
+              -q     Suppresses normal output (quiet mode); the return status indicates whether the optname is  set  or
+                     unset.  If multiple optname arguments are given with -q, the return status is zero if all optnames
+                     are enabled; non‐zero otherwise.
+              -o     Restricts the values of optname to be those defined for the -o option to the set builtin.
+
+              If either -s or -u is used with no optname arguments, shopt shows only those options which are set or un‐
+              set, respectively.  Unless otherwise noted, the shopt options are disabled (unset) by default.
+
+              The  return  status  when  listing options is zero if all optnames are enabled, non‐zero otherwise.  When
+              setting or unsetting options, the return status is zero unless an optname is not a valid shell option.
+
+    1.  (faire "man bash", puis faire "/shopt" puis appuyer sur espace jusqu'à arriver au bon endroit)
+
+    2.  shopt permet d'activer/désactiver des options/paramètres du bash.
+
+    3.
+
+    a) le bash va comprendre *5 comme étant un fichier et va donc nous dire qu'il n'existe pas
+
+    b)shopt -s nullglob
+
+    c) après avoir activé nullglob, le bash va sauter ce qu'il ne comprends pas.
+
+    par conséquent, "cd *5" va être compris comme étant "cd" et va donc nous mettre sur le répertoire courant (~).