I have two files:
One is a list of numbers:
1
5
6
7
10
The second is a very long string
abcdefghijklmno......1234567890
I'd like to print a new file with a 5 character substring that starts at each the positions listed in the 1st file:
such as:
abcde (4 Replies)
hi
i need to name a file with a substring of a another file name.
i.e. if the old filename is abc.txt , the new filename should be abc_1.txt
i should get the substring of the file name and then name the new one
please let me know how to do it (4 Replies)
Hi,
I have a folder list as below, I want to write a script to return a list like:
CASTLE_BU_20080801
CAUSEWAY_BU_20080801
HUNGHOM_BU_20080801
:
:
Can anyone help?
Thanks!
Victor Cheung
List of the folder:
# ls
CASTLE_BU_20080801.DMP OFFICE_MY1_BU_20080801.DMP... (1 Reply)
I'm new to shell scripting and am trying to write a small script that pulls a substring out of a file that has a few lines of text in it. The file will eventually have a lot of text, I just put a few lines in it for testing purposes.
Anyway, this is what I have so far...
#!/bin/ksh
... (4 Replies)
Hi
I need substring from the file name of list of files. I mean i will have to load all the files into database which are there in the Directory.
I need to make the directory with the date(which is substring of the filename Eg: Filename_Name_2012013001010101.txt, So the directory should be... (11 Replies)
Hi,
In my shell script. I am reading all files in directory.
And say if the file names are as follows:
adio_idfl_201302_df.txt
dfa_201301_dll.ctl
dalkd_20130301.csv
I would like to extract the numeric piece of each file name and display as follows:
201302
201301
20130301
I... (9 Replies)
Hello,
I have in my backup folder, files with names convention like this :
randomFileNames_13-02-2014_23h13m09+1392333189
randomFileNames_14-02-2014_02h13m09+1392343989
randomFileNames_14-02-2014_04h13m09+1392351189
etc....
Base on timestamp at end of the filename, I would to delete all the... (7 Replies)
Hello,
A question please.
A have a file that contains a string. Ex:
AAAABBCCCCCDDEEEEEEEEEEFF
I'd want to recover 2 substrings, 'BB' and 'FF' and then leave them in a new file.
Could anoyone help me please?
Thanks in advance (3 Replies)
Hello,
A question please.
A have a file that contains a string. Ex:
AAAABBCCCCCDDEEEEEEEEEEFF
I'd want to recover 2 substrings, 'BB' and 'FF' and then leave them in a new file.
From position 5, 2 caracters (ex:"BB") and from position 25, 2 caracters (ex:"FF") in a file.
Could anoyone help me... (3 Replies)
I want to merge the lines by matching substring of the first file with first column of the second file.
file1:
S00739A_ACAGTG_L001_R1.fq.gz
S00739A_ACAGTG_L001_R2.fq.gz
S00739B_GCCAAT_L001_R1.fq.gz
S00739B_GCCAAT_L001_R2.fq.gz
S00739D_GTGAAA_L001_R1.fq.gz
S00739D_GTGAAA_L001_R2.fq.gz... (14 Replies)
Discussion started by: yifangt
14 Replies
LEARN ABOUT BSD
link
LINK(2) System Calls Manual LINK(2)NAME
link - make a hard link to a file
SYNOPSIS
link(name1, name2)
char *name1, *name2;
DESCRIPTION
A hard link to name1 is created; the link has the name name2. Name1 must exist.
With hard links, both name1 and name2 must be in the same file system. Unless the caller is the super-user, name1 must not be a directory.
Both the old and the new link share equal access and rights to the underlying object.
RETURN VALUE
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 one or more of the following are true:
[ENOTDIR] A component of either path prefix is not a directory.
[EINVAL] Either pathname contains a character with the high-order bit set.
[ENAMETOOLONG] A component of either pathname exceeded 255 characters, or entire length of either path name exceeded 1023 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 and the effective user ID is not super-user.
[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)4th Berkeley Distribution August 26, 1985 LINK(2)