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Top Forums Shell Programming and Scripting Search files in directory for keywords using bash Post 302964163 by cmccabe on Monday 11th of January 2016 04:02:23 PM
Old 01-11-2016
Yes, if the two below files were used name1,123 would be file 1 and name2,1234 would be file 2: does this help? Thank you Smilie.

Code:
 name1 123  chr  start  stop  ref  alt 
                      1    10     20    a    -
                      1    30    150  -     aaaa
 name2  1234 chr   start  stop  ref  alt
                       2     220   250   t     c

 

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LINK(2) 						      BSD System Calls Manual							   LINK(2)

NAME
link -- make a hard file link SYNOPSIS
#include <unistd.h> int link(const char *name1, const char *name2); DESCRIPTION
The link() function call atomically creates the specified directory entry (hard link) name2 with the attributes of the underlying object pointed at by name1 If the link is successful: the link count of the underlying object is incremented; name1 and name2 share equal access and rights to the underlying object. If name1 is removed, the file name2 is not deleted and the link count of the underlying object is decremented. Name1 must exist for the hard link to succeed and both name1 and name2 must be in the same file system. As mandated by POSIX.1 name1 may not be a directory. RETURN VALUES
Upon successful completion, a value of 0 is returned. Otherwise, a value of -1 is returned and errno is set to indicate the error. ERRORS
Link() will fail and no link will be created if: [ENOTDIR] A component of either path prefix is not a directory. [ENAMETOOLONG] A component of a pathname exceeded {NAME_MAX} characters, or an entire path name exceeded {PATH_MAX} characters. [ENOENT] A component of either path prefix does not exist. [EACCES] A component of either path prefix denies search permission. [EACCES] The requested link requires writing in a directory with a mode that denies write permission. [ELOOP] Too many symbolic links were encountered in translating one of the pathnames. [ENOENT] The file named by name1 does not exist. [EEXIST] The link named by name2 does exist. [EPERM] The file named by name1 is a directory. [EXDEV] The link named by name2 and the file named by name1 are on different file systems. [ENOSPC] The directory in which the entry for the new link is being placed cannot be extended because there is no space left on the file system containing the directory. [EDQUOT] The directory in which the entry for the new 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. [EIO] An I/O error occurred while reading from or writing to the file system to make the directory entry. [EROFS] The requested link requires writing in a directory on a read-only file system. [EFAULT] One of the pathnames specified is outside the process's allocated address space. SEE ALSO
symlink(2), unlink(2) STANDARDS
The link() function is expected to conform to IEEE Std 1003.1-1988 (``POSIX.1''). 4th Berkeley Distribution January 12, 1994 4th Berkeley Distribution
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