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1CP(1) BSD Reference Manual CP(1)
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4 c\bcp\bp - copy files
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7 c\bcp\bp [-\b-R\bR [-\b-H\bH | -\b-L\bL | -\b-P\bP]] [-\b-f\bfi\bip\bp] _\bs_\bo_\bu_\br_\bc_\be_\b__\bf_\bi_\bl_\be _\bt_\ba_\br_\bg_\be_\bt_\b__\bf_\bi_\bl_\be
8 c\bcp\bp [-\b-R\bR [-\b-H\bH | -\b-L\bL | -\b-P\bP]] [-\b-f\bfi\bip\bp] _\bs_\bo_\bu_\br_\bc_\be_\b__\bf_\bi_\bl_\be _\b._\b._\b. _\bt_\ba_\br_\bg_\be_\bt_\b__\bd_\bi_\br_\be_\bc_\bt_\bo_\br_\by
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11 In the first synopsis form, the c\bcp\bp utility copies the contents of the
12 _\bs_\bo_\bu_\br_\bc_\be_\b__\bf_\bi_\bl_\be to the _\bt_\ba_\br_\bg_\be_\bt_\b__\bf_\bi_\bl_\be. In the second synopsis form, the contents
13 of each named _\bs_\bo_\bu_\br_\bc_\be_\b__\bf_\bi_\bl_\be is copied to the destination _\bt_\ba_\br_\bg_\be_\bt_\b__\bd_\bi_\br_\be_\bc_\bt_\bo_\br_\by.
14 The names of the files themselves are not changed. If c\bcp\bp detects an at-
15 tempt to copy a file to itself, the copy will fail.
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17 The following options are available:
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19 -\b-H\bH If the -\b-R\bR option is specified, symbolic links on the command line
20 are followed. (Symbolic links encountered in the tree traversal
21 are not followed.)
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23 -\b-L\bL If the -\b-R\bR option is specified, all symbolic links are followed.
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25 -\b-P\bP If the -\b-R\bR option is specified, no symbolic links are followed.
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27 -\b-R\bR If _\bs_\bo_\bu_\br_\bc_\be_\b__\bf_\bi_\bl_\be designates a directory, c\bcp\bp copies the directory and
28 the entire subtree connected at that point. This option also caus-
29 es symbolic links to be copied, rather than indirected through, and
30 for c\bcp\bp to create special files rather than copying them as normal
31 files. Created directories have the same mode as the corresponding
32 source directory, unmodified by the process' umask.
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34 -\b-f\bf For each existing destination pathname, remove it and create a new
35 file, without prompting for confirmation regardless of its permis-
36 sions. (The -\b-i\bi option is ignored if the -\b-f\bf option is specified.)
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38 -\b-i\bi Causes c\bcp\bp to write a prompt to the standard error output before
39 copying a file that would overwrite an existing file. If the re-
40 sponse from the standard input begins with the character `y', the
41 file copy is attempted.
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43 -\b-p\bp Causes c\bcp\bp to preserve in the copy as many of the modification time,
44 access time, file flags, file mode, user ID, and group ID as al-
45 lowed by permissions.
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47 If the user ID and group ID cannot be preserved, no error message
48 is displayed and the exit value is not altered.
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50 If the source file has its set user ID bit on and the user ID can-
51 not be preserved, the set user ID bit is not preserved in the
52 copy's permissions. If the source file has its set group ID bit on
53 and the group ID cannot be preserved, the set group ID bit is not
54 preserved in the copy's permissions. If the source file has both
55 its set user ID and set group ID bits on, and either the user ID or
56 group ID cannot be preserved, neither the set user ID or set group
57 ID bits are preserved in the copy's permissions.
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59 For each destination file that already exists, its contents are overwrit-
60 ten if permissions allow, but its mode, user ID, and group ID are un-
61 changed.
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63 In the second synopsis form, _\bt_\ba_\br_\bg_\be_\bt_\b__\bd_\bi_\br_\be_\bc_\bt_\bo_\br_\by must exist unless there is
64 only one named _\bs_\bo_\bu_\br_\bc_\be_\b__\bf_\bi_\bl_\be which is a directory and the -\b-R\bR flag is speci-
65 fied.
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67 If the destination file does not exist, the mode of the source file is
68 used as modified by the file mode creation mask (u\bum\bma\bas\bsk\bk, see csh(1)). If
69 the source file has its set user ID bit on, that bit is removed unless
70 both the source file and the destination file are owned by the same user.
71 If the source file has its set group ID bit on, that bit is removed un-
72 less both the source file and the destination file are in the same group
73 and the user is a member of that group. If both the set user ID and set
74 group ID bits are set, all of the above conditions must be fulfilled or
75 both bits are removed.
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77 Appropriate permissions are required for file creation or overwriting.
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79 Symbolic links are always followed unless the -\b-R\bR flag is set, in which
80 case symbolic links are not followed, by default. The -\b-H\bH or -\b-L\bL flags (in
81 conjunction with the -\b-R\bR flag) cause symbolic links to be followed as de-
82 scribed above. The -\b-H\bH, -\b-L\bL and -\b-P\bP options are ignored unless the -\b-R\bR op-
83 tion is specified. In addition, these options override each other and
84 the command's actions are determined by the last one specified.
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86 C\bCp\bp exits 0 on success, >0 if an error occurred.
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89 Historic versions of the c\bcp\bp utility had a -\b-r\br option. This implementation
90 supports that option, however, its use is strongly discouraged, as it
91 does not correctly copy special files, symbolic links or fifo's.
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94 mv(1), rcp(1), umask(2), fts(3), symlink(7)
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97 The c\bcp\bp command is expected to be IEEE Std1003.2 (``POSIX'') compatible.
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994th Berkeley Distribution April 18, 1994 2