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UNIX for Dummies Questions & Answers
get symbolic link file
Post 10393 by Perderabo on Tuesday 13th of November 2001 02:41:36 PM
11-13-2001
Quote:
Originally posted by rwb1959
It should make for an interesting excercise.
It should make for an interesting excercise.
I have tested the first half of the script. You will need to alter the variables at the top. Also look at the the lines marked with a comment. Make sure that the top half is working before you try the bottom half. I didn't test the bottom half, but I think it should work....
Code:
#! /usr/bin/ksh
HOST=xxx.abc.com
USER=andrec
PASSWD=xyzzy
DIR=directory
LIST=""
IFS=""
{ ftp -n <<-!x
open $HOST
user $USER $PASSWD
cd $DIR
dir
bye
!x
} | while read line ; do
firstchar=$(echo "$line" |cut -c1)
name=$(echo "$line" | cut -c55-) ##### adjust the 55
case $firstchar in
-) echo $name is a real file
if [[ -z $LIST ]] ; then
LIST=$name
else
LIST="$LIST:$name"
fi
;;
l) echo $name is a symlink
one=${name%% *}
two=${name##* }
echo ln -s $one $two ##### lose the echo
;;
esac
done
exit ##### remove me when first half is working
#
# Get the files (untested)
{
print open $HOST
print user $USER $PASSWD
print cd $DIR
IFS=":"
for name in $LIST ; do
print get $name
done
print bye ; } | ftp -n
exit 0|
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LEARN ABOUT ULTRIX
symlink
symlink(2) System Calls Manual symlink(2) Name symlink - make symbolic link to a file Syntax symlink(name1, name2) char *name1, *name2; Description A symbolic link name2 is created to name1 (name2 is the name of the file created, name1 is the string used in creating the symbolic link). Either name can be an arbitrary path name. The files need not be on the same file system. Return Values Upon successful completion, a zero (0) value is returned. If an error occurs, the error code is stored in errno, and a -1 value is returned. Diagnostics The symbolic link is made, unless one or more of the following are true: [ENOTDIR] A component of the name2 prefix is not a directory. [EEXIST] The name2 already exists. [EACCES] A component of the name2 path prefix denies search permission. [EROFS] The file name2 would reside on a read-only file system. [EFAULT] The name1 or name2 points outside the process's allocated address space. [ELOOP] Too many symbolic links were encountered in translating the pathname. [ENAMETOOLONG] A component of either pathname exceeded MAXNAMELEN characters, or the entire length of either pathname exceeded MAXPATHNAME characters. [ENOENT] The named file does not exist. [EIO] An I/O error occurred while making the directory entry for name2, or allocating the inode for name2, or writing out the link contents of name2. [ENOSPC] The directory in which the entry for the new symbolic link is being placed cannot be extended, because there is no space left on the file system containing the directory. [ENOSPC] The new symbolic link cannot be created, because there is no space left on the file system that will contain the symbolic link. [ENOSPC] There are no free inodes on the file system on which the symbolic link is being created. [EDQUOT] The directory in which the entry for the new symbolic link is being placed cannot be extended because the user's quota of disk blocks on the file system containing the directory has been exhausted. [EDQUOT] The new symbolic link cannot be created because the user's quota of disk blocks on the file system that will contain the symbolic link has been exhausted. [EDQUOT] The user's quota of inodes on the file system on which the user's symbolic link is being created has been exhausted. [EIO] An I/O error occurred while making the directory entry or allocating the inode. [ETIMEDOUT] A connect request or remote file operation failed, because the connected party did not properly respond after a period of time that is dependent on the communications protocol. See Also ln(1), link(2), readlink(2), stat(2), unlink(2) symlink(2)