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Top Forums Shell Programming and Scripting find files in sub dir with tag & add "." at the beginning [tag -f "Note" . | xargs -0 {} mv {} .{}] Post 303043308 by Nexeu on Thursday 23rd of January 2020 09:43:42 PM
Old 01-23-2020
find files in sub dir with tag & add "." at the beginning [tag -f "Note" . | xargs -0 {} mv {} .{}]

I am trying find files in sub dir with certain tags using tag command, and add the period to the beginning. I can't use chflags hidden {} cause it doesn't add period to the beginning of the string for web purpose. So far with my knowledge, I only know mdfind or tag can be used to search files with tags in Mac OS x.

my current closest command is this (doesn't work):

Code:
tag -f "Note" . | xargs -0 {} mv {} .{}

Moderator's Comments:
Mod Comment Please wrap your samples/codes in CODE TAGS as per forum rules.

Last edited by Nexeu; 01-24-2020 at 12:48 AM..
 

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M_TAG(9)						   BSD Kernel Developer's Manual						  M_TAG(9)

NAME
m_tag, m_tag_get, m_tag_free, m_tag_prepend, m_tag_unlink, m_tag_delete, m_tag_delete_chain, m_tag_delete_nonpersistent, m_tag_find, m_tag_copy, m_tag_copy_chain, m_tag_init, m_tag_first, m_tag_next -- mbuf tagging interfaces SYNOPSIS
#include <sys/mbuf.h> struct m_tag * m_tag_get(int type, int len, int wait); void m_tag_free(struct m_tag *t); void m_tag_prepend(struct mbuf *m, struct m_tag *t); void m_tag_unlink(struct mbuf *m, struct m_tag *t); void m_tag_delete(struct mbuf *m, struct m_tag *t); void m_tag_delete_chain(struct mbuf *m, struct m_tag *t); void m_tag_delete_nonpersistent(struct mbuf *); struct m_tag * m_tag_find(struct mbuf *m, int type, struct m_tag *t); struct m_tag * m_tag_copy(struct m_tag *m); int m_tag_copy_chain(struct mbuf *to, struct mbuf *from); void m_tag_init(struct mbuf *m); struct m_tag * m_tag_first(struct mbuf *m); struct m_tag * m_tag_next(struct mbuf *m, struct m_tag *t); DESCRIPTION
The m_tag interface is used to ``tag'' mbufs. FUNCTIONS
m_tag_get(type, len, wait) Allocate an mbuf tag. type is one of the PACKET_TAG_ macros. len is the size of the data associated with the tag, in bytes. wait is either M_WAITOK or M_NOWAIT. m_tag_free(t) Free the mbuf tag t. m_tag_prepend(m, t) Prepend the mbuf tag t to the mbuf m. t will become the first tag of the mbuf m. When m is freed, t will also be freed. m_tag_unlink(m, t) Unlink the mbuf tag t from the mbuf m. m_tag_delete(m, t) The same as m_tag_unlink() followed by m_tag_free(). m_tag_delete_chain(m, t) Unlink and free mbuf tags beginning with the mbuf tag t from the mbuf m. If t is NULL, m_tag_delete_chain() unlinks and frees all mbuf tags associated with the mbuf m. m_tag_delete_nonpersistent(m) Unlink and free all non persistent tags associated with the mbuf m. m_tag_find(m, type, t) Find an mbuf tag with type type after the mbuf tag t in the tag chain associated with the mbuf m. If t is NULL, search from the first mbuf tag. If an mbuf tag is found, return a pointer to it. Otherwise return NULL. m_tag_copy(t) Copy an mbuf tag t. Return a new mbuf tag on success. Otherwise return NULL. m_tag_copy_chain(to, from) Copy all mbuf tags associated with the mbuf from to the mbuf to. If to already has any mbuf tags, they will be unlinked and freed beforehand. Return 1 on success. Otherwise return 0. m_tag_init(m) Initialize mbuf tag chain of the mbuf m. m_tag_first(m) Return the first mbuf tag associated with the mbuf m. Return NULL if no mbuf tags are found. m_tag_next(m, t) Return the next mbuf tag after t associated with the mbuf m. Return NULL if t is the last tag in the chain. CODE REFERENCES
The mbuf tagging interfaces are implemented within the file sys/kern/uipc_mbuf2.c. The PACKET_TAG_ macros are defined in the file sys/sys/mbuf.h. SEE ALSO
intro(9), malloc(9), mbuf(9) BUGS
The semantics of the term "persistent tag" are vague. BSD
September 7, 2004 BSD
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