30 lines
1.7 KiB
Plaintext
30 lines
1.7 KiB
Plaintext
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tar xvf globpattern.tar
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1.ls -d GLOB/gLob/*[[:upper:]]
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2.ls -d GLOB/*[[:upper:]]*
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3.ls -d GLOB/gLob/?[[:digit:]]*
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4.ls -d GLOB/*[[:digit:]][[:digit:]]*
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II)
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1.(man bash ligne3380)
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shopt [-pqsu] [-o] [optname ...]
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Toggle the values of settings controlling optional shell behavior. The settings can be either those listed below, or, if the -o option is used,
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those available with the -o option to the set builtin command. With no options, or with the -p option, a list of all settable options is dis‐
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played, with an indication of whether or not each is set; if optnames are supplied, the output is restricted to those options. The -p option
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causes output to be displayed in a form that may be reused as input. Other options have the following meanings:
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-s Enable (set) each optname.
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-u Disable (unset) each optname.
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-q Suppresses normal output (quiet mode); the return status indicates whether the optname is set or unset. If multiple optname arguments are
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given with -q, the return status is zero if all optnames are enabled; non-zero otherwise.
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-o Restricts the values of optname to be those defined for the -o option to the set builtin.
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2.shopt permet d'activer et desactiver des options du shell
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shopt nullglob --> permet de savoir si l'option nullglob est activé ou desactivé
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shopt -s nullglob --> permet d'activé l'option nullglob
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shopt -q nullglob --> permet de désactivé l'option nullglob
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l'option du shell "nullglob" fait sauter la sécurité
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lorsqu'elle est desactivé, le programme renvoie une erreur lorqu'il y en a une.
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lorsqu'elle est activé, le shell force l'execution
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