Here is my file which contains a list of files (recent versions of files are in red). This file is dynamic, files versions can change at any time (versions can increment)
Please, can you help me to write a shell script that extract all old versions (i.e: lines in black) ?
I am reading a file that contains over 5000 lines and I want to assign it to a shell variable array (which has a restriction of 1024 rows). I had an idea that if I could grab 1000 record hunks of the file, and pipe the records out, that I could perform a loop until I got to the end and process 1000... (5 Replies)
hello, hope you can help me:
ive got a file called archivos
The content or structure of this file is
./chu0/filechu
./chu1/filechu
I extract each line from this file manually and redirect to a file, and it Works fine, so the command line is:
awk ‘/chu0/ {print $0}' < archivos >... (8 Replies)
I have two files
file A which have a number in every row and file B which contains few hundred thousand rows with about 300 characters in each row (csv)
What I need is to extract whole rows from B file (only these which numbers are indicated in A file)
I also need to use cygwin.
Any... (7 Replies)
This is the sample input file
b 05/Jul/2010:07:00:10
a 05/Jul/2010:06:00:10
b 05/Jul/2010:07:00:10
c 05/Jul/2010:07:10:10
d 05/Jul/2010:08:00:10
e 05/Jul/2010:09:00:10
f 05/Jul/2010:10:00:10
h 05/Jul/2010:11:00:10
i 05/Jul/2010:12:00:10
j ... (9 Replies)
hi,
i have two files.
file1.sh
echo "unix"
echo "linux"
file2.sh
echo "unix linux forums"
now the output i need is
$./file2.sh
unix linux forums (3 Replies)
Hi all,
I have a file with many records with information as given below
ID A16L2_HUMAN Reviewed; 619 AA.
AC Q8NAA4; A5PL30; B2RPK5; Q658V4; Q6PID3; Q8NBG0;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 20-MAY-2008, sequence version 2.
DT ... (1 Reply)
Hi guys
I have a several thousands line file in the following format:
n817
--------------------------------------------------
n842
--------------------------------------------------
n877
--------------------------------------------------
n513
/bb/data/rmt2db.lrl:JBSKDB 31915 75... (4 Replies)
Hi All,
I am trying to get some lines from a file i did it with while-do-loop. since the files are huge it is taking much time. now i want to make it faster.
The requirement is the file will be having 1 million lines.
The format is like below.
##transaction, , , ,blah, blah... (38 Replies)
Dears experts
i have UNIX file that contain 4 million lines , i need to extract all lines that have entiries saved in VI file , i have below comand but it takes tooooo long time :
for i in `cat file1.csv`; do cat dump | grep -i $i >> file2.csv; done
where :
file1.csv = VI file that... (12 Replies)
Discussion started by: is2_egypt
12 Replies
LEARN ABOUT OPENSOLARIS
chroot
chroot(1M) System Administration Commands chroot(1M)NAME
chroot - change root directory for a command
SYNOPSIS
/usr/sbin/chroot newroot command
DESCRIPTION
The chroot utility causes command to be executed relative to newroot. The meaning of any initial slashes (/) in the path names is changed
to newroot for command and any of its child processes. Upon execution, the initial working directory is newroot.
Notice that redirecting the output of command to a file,
chroot newroot command >x
will create the file x relative to the original root of command, not the new one.
The new root path name is always relative to the current root. Even if a chroot is currently in effect, the newroot argument is relative to
the current root of the running process.
This command can be run only by the super-user.
RETURN VALUES
The exit status of chroot is the return value of command.
EXAMPLES
Example 1 Using the chroot Utility
The chroot utility provides an easy way to extract tar files (see tar(1)) written with absolute filenames to a different location. It is
necessary to copy the shared libraries used by tar (see ldd(1)) to the newroot filesystem.
example# mkdir /tmp/lib; cd /lib
example# cp ld.so.1 libc.so.1 libcmd.so.1 libdl.so.1
libsec.so.1 /tmp/lib
example# cp /usr/bin/tar /tmp
example# dd if=/dev/rmt/0 | chroot /tmp tar xvf -
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO cd(1), tar(1), chroot(2), ttyname(3C), attributes(5)NOTES
Exercise extreme caution when referencing device files in the new root file system.
References by routines such as ttyname(3C) to stdin, stdout, and stderr will find that the device associated with the file descriptor is
unknown after chroot is run.
SunOS 5.11 15 Dec 2003 chroot(1M)