1 | #!/usr/bin/perl |
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2 | 'di'; |
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3 | 'ig00'; |
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4 | # |
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5 | # $RCSfile: relink,v $$Revision: 1.1.1.2 $$Date: 1997-11-13 01:47:42 $ |
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6 | # |
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7 | # $Log: not supported by cvs2svn $ |
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8 | |
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9 | ($op = shift) || die "Usage: relink perlexpr [filenames]\n"; |
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10 | if (!@ARGV) { |
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11 | @ARGV = <STDIN>; |
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12 | chop(@ARGV); |
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13 | } |
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14 | for (@ARGV) { |
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15 | next unless -l; # symbolic link? |
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16 | $name = $_; |
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17 | $_ = readlink($_); |
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18 | $was = $_; |
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19 | eval $op; |
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20 | die $@ if $@; |
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21 | if ($was ne $_) { |
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22 | unlink($name); |
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23 | symlink($_, $name); |
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24 | } |
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25 | } |
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26 | ############################################################################## |
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27 | |
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28 | # These next few lines are legal in both Perl and nroff. |
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29 | |
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30 | .00; # finish .ig |
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31 | |
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32 | 'di \" finish diversion--previous line must be blank |
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33 | .nr nl 0-1 \" fake up transition to first page again |
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34 | .nr % 0 \" start at page 1 |
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35 | ';<<'.ex'; #__END__ ############# From here on it's a standard manual page ############ |
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36 | .TH RELINK 1 "July 30, 1990" |
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37 | .AT 3 |
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38 | .SH LINK |
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39 | relink \- relinks multiple symbolic links |
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40 | .SH SYNOPSIS |
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41 | .B relink perlexpr [symlinknames] |
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42 | .SH DESCRIPTION |
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43 | .I Relink |
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44 | relinks the symbolic links given according to the rule specified as the |
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45 | first argument. |
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46 | The argument is a Perl expression which is expected to modify the $_ |
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47 | string in Perl for at least some of the names specified. |
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48 | For each symbolic link named on the command line, the Perl expression |
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49 | will be executed on the contents of the symbolic link with that name. |
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50 | If a given symbolic link's contents is not modified by the expression, |
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51 | it will not be changed. |
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52 | If a name given on the command line is not a symbolic link, it will be ignored. |
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53 | If no names are given on the command line, names will be read |
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54 | via standard input. |
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55 | .PP |
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56 | For example, to relink all symbolic links in the current directory |
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57 | pointing to somewhere in X11R3 so that they point to X11R4, you might say |
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58 | .nf |
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59 | |
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60 | relink 's/X11R3/X11R4/' * |
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61 | |
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62 | .fi |
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63 | To change all occurences of links in the system from /usr/spool to /var/spool, |
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64 | you'd say |
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65 | .nf |
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66 | |
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67 | find / -type l -print | relink 's#/usr/spool#/var/spool#' |
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68 | |
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69 | .fi |
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70 | .SH ENVIRONMENT |
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71 | No environment variables are used. |
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72 | .SH FILES |
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73 | .SH AUTHOR |
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74 | Larry Wall |
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75 | .SH "SEE ALSO" |
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76 | ln(1) |
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77 | .br |
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78 | perl(1) |
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79 | .SH DIAGNOSTICS |
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80 | If you give an invalid Perl expression you'll get a syntax error. |
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81 | .SH BUGS |
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82 | .ex |
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