find -type f -mtime -1 -print0 | xargs -0 ls -lt>_dernieres_modifs.txt
-e filename
True if filename exists.
-d filename
True if filename exists and is a directory.
-f filename
True if filename exists and is a plain file.
-h filename
True if filename exists and is a symbolic link.
-r filename
True if filename exists and is readable.
-w filename
True if filename exists and is writable.
-n string
True if the length of string is non-zero.
-z string
True if the length of string is zero.
string
True if string is not the empty string.
s1 = s2
True if the strings s1 and s2 are identical.
s1 != s2
True if the strings s1 and s2 are not identical.
n1 -eq n2
True if the numbers n1 and n2 are equal.
n1 -ne n2
True if the numbers n1 and n2 are not equal.
n1 -gt n2
True if the number n1 is greater than n2.
n1 -ge n2
True if the number n1 is greater than or equal to n2.
n1 -lt n2
True if the number n1 is less than n2.
n1 -le n2
True if the number n1 is less than or equal to n2.
! expression
Negates expression, that is, returns true iff expression is false.
expr1 -a expr2
True if both expressions, expr1 and expr2 are true.
expr1 -o expr2
True if either expression, expr1 or expr2 is true.
( expression )
True if expression is true. This allows one to nest expressions.#découpage du fichier nom_file en fichiers de 1Go split -b 1024m nom_file #recollage cat nom_file1 nom_file2 > nom_file
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