12-18-2014
That's clever. The /dev/null forces it to be more than one filename, so names aren't omitted.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I'm trying to write a command that backs up certain files into my current directory and adds a prefix to the backed up file name. I realise this can be done in a script by specifying each individual file but would like to know if it can be done on one line and made an alias.
I have the... (5 Replies)
Discussion started by: m223464
5 Replies
2. UNIX for Dummies Questions & Answers
I have many files that have "inputstring" somewhere in their filename (without the quotes), and I want to rename them all so that "inputstring" is replaced with "newstring". And I also want to specify arbitrary text for "inputstring" and "newstring" so that I can call the scripts that does this... (6 Replies)
Discussion started by: karman
6 Replies
3. Shell Programming and Scripting
I have a large list of filenames from an Excel sheet, which I then translate into a simple text file. I'd like to use this list, which contains various file extensions , to archive these files and then remove them recursively through multiple directories and subdirectories. So far, it looks like... (5 Replies)
Discussion started by: fxvisions
5 Replies
4. Shell Programming and Scripting
Hello,
I am trying to write a bash shell script that does the following:
1.Finds all *.txt files within my directory of interest
2. reads each of the files (25 files) one by one (tab-delimited format and have the same data format)
3. skips the first 10 rows of the file
4. extracts and... (4 Replies)
Discussion started by: manishabh
4 Replies
5. UNIX for Dummies Questions & Answers
Hi--
I'm trying to figure out how to use cat more wisely. I have the following command, which works, but I'd like to understand how to get it to work more clearly and efficiently.
cat 'my file.001' 'my file.002' 'my file.003' 'my file.004' 'my file.005' 'my file.006' 'my file.007' 'my... (6 Replies)
Discussion started by: rlinsurf
6 Replies
6. Shell Programming and Scripting
Hopefully the title summarized what I need help with. I have multiple files that I would like to concatenate in bash.
ie:
cat file1 file2 file3 > bigfile
except I do not want to include the first line from each file (). Any help? Thanks. (6 Replies)
Discussion started by: sanimfj
6 Replies
7. UNIX Desktop Questions & Answers
I have a number of files in a directory named like this:
fooP1, fooN1, fooP2, fooN2 ... fooP(i), fooN(i).
I'd like to know how to combine each P and N pair into a single file, foo(i)
TIA
John Balwit (1 Reply)
Discussion started by: balwit
1 Replies
8. UNIX for Dummies Questions & Answers
I have a folder that contains a number of files with file names as follows:
XX.YYYY..ZZZ.2014.001.000000
XX.YYYY..ZZZ.2014.001.000400
XX.YYYY..ZZZ.2014.001.000800
XX.YYYY..ZZZ.2014.001.001200
XX.YYYY..ZZZ.2014.001.001600
.....
XX.YYYY..ZZZ.2014.002.000000
XX.YYYY..ZZZ.2014.002.000400... (8 Replies)
Discussion started by: quakesrus
8 Replies
9. Shell Programming and Scripting
there are mutiple file nams in the directory. How to return the the lastest files for each file name.
ex.
abc1234_050201
abc1234_050206
abc1234_050208
xyz34_050204
xyz34_050210
xyz34_050218
thanks (4 Replies)
Discussion started by: grand_sam
4 Replies
10. Shell Programming and Scripting
I am able to list all the filenames under a directory & its sub-directories except blent.tar on Linux
find "/tmp/" -type f | grep -v blent.tar | rev | cut -d '/' -f1 | rev
Desired Output:
THIRDPARTYLICENSEREADME.txt
javaws
libjavaplugin_oji.so
libjavaplugin_oji.so... (3 Replies)
Discussion started by: mohtashims
3 Replies
LEARN ABOUT FREEBSD
fdescfs
FDESCFS(5) BSD File Formats Manual FDESCFS(5)
NAME
fdescfs -- file-descriptor file system
SYNOPSIS
fdescfs /dev/fd fdescfs rw 0 0
DESCRIPTION
The file-descriptor file system, or fdescfs, provides access to the per-process file descriptor namespace in the global file system names-
pace. The conventional mount point is /dev/fd.
The file system's contents appear as a list of numbered files which correspond to the open files of the process reading the directory. The
files /dev/fd/0 through /dev/fd/# refer to file descriptors which can be accessed through the file system. If the file descriptor is open
and the mode the file is being opened with is a subset of the mode of the existing descriptor, the call:
fd = open("/dev/fd/0", mode);
and the call:
fd = fcntl(0, F_DUPFD, 0);
are equivalent.
Flags to the open(2) call other than O_RDONLY, O_WRONLY and O_RDWR are ignored.
Note: /dev/fd/0, /dev/fd/1 and /dev/fd/2 files are created by default when devfs alone is mounted. fdescfs creates entries for all file
descriptors opened by the process.
FILES
/dev/fd/#
EXAMPLES
To mount a fdescfs volume located on /dev/fd:
mount -t fdescfs null /dev/fd
SEE ALSO
devfs(5), mount(8)
HISTORY
The fdescfs file system first appeared in 4.4BSD. The fdescfs manual page first appeared in FreeBSD 2.2.
AUTHORS
The fdescfs manual page was written by Mike Pritchard <mpp@FreeBSD.org>, and was based on the manual page written by Jan-Simon Pendry.
BSD
September 18, 2010 BSD