sed 's/abc/xyz/g' abc.txt > abc.txt
This change all the abc s in abc.txt to xyz s but does not write back to the abc.txt.
Suggest me the cleaner way without using temp file please.
Cheers,
Amol. (3 Replies)
Hello,
I'm new to scripting, I have a file test.dat. I want to make changes to it with out openning it.
Example: test.dat has rows, and I want to change value "LA" to "TX" without opening it or without writing it to another file.
Is it possible?
Thanks (9 Replies)
Hi Friends.
I have a file called install.data which has fields like :
XXXXX
ACVCGFFTFY UAHIUH OI
CONNECTION=tape/11/
LOCATAION=08-90-89
SIZE=90
I had to change the values of some of these variables. So i did :
grep "SIZE" instal.data | sed 's/*/00/' ...this is working fine on command... (4 Replies)
can i make an iso file from my DAT tape?
pref .ISO?
the thing is ..
i have an 5.0.7 and
a complete backup of hd (cpio cmd) on to tape (find . -depth -print | cpio -oVcB -C 20480 -O /dev/rStp0)
that i made after booting from boot&root floppies
now i want to take this backup and dump it on... (5 Replies)
Hi Friends,
I'mfacing a problem while doing ftp of a large file.The control session is getting closed after sometime.But data session transfers the file successfully even when the control seeion is lost.I need to make the control session available as long as data session is active.
How can i... (1 Reply)
Hi All:
I am a newbie.
I have shell script and bunch of java jar files and I want to give one single executable file (may be .bin).
Ex: I have test.sh, jar1.jar, jar2.jar. I have to make process.xxx
When we run "process.xxx" it will run the "test.sh" script which inturn uses jar1.jar and... (0 Replies)
Hi power user,
Basically, this thread is a continuation of the previous one :):
https://www.unix.com/shell-programming-scripting/110650-making-connection-nodes-graph.html#post302326483
However, I'm going to explain it again.
I have this following data:
file1
aa A ... (3 Replies)
hi there guys
could someone please, show me how to make a hard link to a file in c language ?
i am using minix. The program below reads the last number from file numbers, adds a one to it and then appends the new number into the file. I use a c script as driver to this program, the c script... (1 Reply)
Hi guys, i'm trying to make a file called 'run-all-tests' executable but it is not letting me for some reason. I am presented with the following error: chmod: cannot access `./run-tests': No such file or directory
Basically i have a folder called ex3 and within that there are task folders:... (11 Replies)
Ok, so let's say that I have a file like the following:
I want to create 100 replicates of this file, except that for each file, I want different randomized combinations of either A or B at the end of each line so that I would end up with files like the following:
and
etc.
I... (1 Reply)
Discussion started by: Scatterbrain26
1 Replies
LEARN ABOUT OSF1
bdiff
bdiff(1) General Commands Manual bdiff(1)NAME
bdiff - Finds differences in large files
SYNOPSIS
bdiff file1 file2 [number] [-s]
bdiff - file2 [number] [-s]
bdiff file1 - [number] [-s]
The bdiff command compares file1 and file2 and writes information about their differing lines to standard output. If either filename is -
(dash), bdiff reads standard input.
OPTIONS
Suppresses error messages. (May either precede or follow the number argument if it is specified.)
DESCRIPTION
The bdiff command uses diff to find lines that must be changed in two files to make them identical (see the diff command). Its primary
purpose is to permit processing of files that are too large for diff.
The bdiff command ignores lines common to the beginning of both files, splits the remainders into sections of number lines, and runs diff
on the sections. The output is then processed to make it look as if diff had processed the files whole.
If you do not specify number, a system default is used. In some cases, the number you specify or the default number may be too large for
diff. If bdiff fails, specify a smaller value for number and try again.
Note that because of file segmenting, bdiff does not necessarily find the smallest possible set of file differences. In general, although
the output is similar, using bdiff is not the equivalent of using diff.
NOTES
The diff command is executed by a child process, generated by forking, and communicates with bdiff through pipes.
It should not normally be necessary to use this command, since diff can handle most large files.
EXIT STATUS
No differences. Differences found. An error occurred.
SEE ALSO
Commands: diff(1), diff3(1)bdiff(1)