Shell Cheatsheet

Quelques astuces pour SHELL…

Boucler sur les sous-répertoires d’un répertoire

Operateur	Description	Exemple
-b file	Checks if file is a block special file; if yes, then the condition becomes true.	[ -b $file ] is false.
-c file	Checks if file is a character special file; if yes, then the condition becomes true.	[ -c $file ] is false.
-d file	Checks if file is a directory; if yes, then the condition becomes true.	[ -d $file ] is not true.
-f file	Checks if file is an ordinary file as opposed to a directory or special file; if yes, then the condition becomes true.	[ -f $file ] is true.
-g file	Checks if file has its set group ID (SGID) bit set; if yes, then the condition becomes true.	[ -g $file ] is false.
-k file	Checks if file has its sticky bit set; if yes, then the condition becomes true.	[ -k $file ] is false.
-p file	Checks if file is a named pipe; if yes, then the condition becomes true.	[ -p $file ] is false.
-t file	Checks if file descriptor is open and associated with a terminal; if yes, then the condition becomes true.	[ -t $file ] is false.
-u file	Checks if file has its Set User ID (SUID) bit set; if yes, then the condition becomes true.	[ -u $file ] is false.
-r file	Checks if file is readable; if yes, then the condition becomes true.	[ -r $file ] is true.
-w file	Checks if file is writable; if yes, then the condition becomes true.	[ -w $file ] is true.
-x file	Checks if file is executable; if yes, then the condition becomes true.	[ -x $file ] is true.
-s file	Checks if file has size greater than 0; if yes, then condition becomes true.	[ -s $file ] is true.
-e file	Checks if file exists; is true even if file is a directory but exists.	[ -e $file ] is true.

 

DIRECTORIES=`ls -1`

for DIR in $DIRECTORIES 
do
 if [ -d $DIR ]
 
 fi
done

 

Grep recursif

grep -r foo
# Comptage
grep -r -c foo