I have some basic doubts. Can someone clarify in this forum?
1)if
then
eval ' tset -s -Q -m ':?hp' '
else
eval ' tset -s -Q '
what does it exactly mean in .profile?
2) what are 'nobody' and 'noaccess' usernames in /etc/passwd file.
... (3 Replies)
Hello all. Let me start off by saying I know a little more then it seems by me asking this question... here goes
I have an old 486 box and I want to start messing around with unix. I've been taking classes for 3 or 4 years in c programming in unix, so I am used to the commands and such, but I... (1 Reply)
Could someone tell me the command to find out the OS version which will give 12 character not the 9 characters(which is usually machine id).
uname -i gives machine id and uname -a is more comprehensive way to look.
Thanks! (4 Replies)
hi,
I have a basic question,,
i am in a directory called
/intas/OCU_3.9.1/sbin
ocuut1@france>mv itsa_tcs itsa_tcs_old
mv: itsa_tcs_old: rename: Permission denied
i am logging as the owner of the file.
when i am doing this i am getting the above error of permission denied.
I know... (3 Replies)
i'm doing this in one terminal:
nc -lu 7402
and it appears to start listening properly, then in another i do this:
echo "hello" | nc -u localhost 7402
and nothing happens on the listening terminal - what am i doing wrong?
thanks. (7 Replies)
I think I am doing this correctly, but it is responding very quickly with no results so I am not sure. I need to do a case insensitive grep of all files in my current directory
grep -i <keyword> /my/directory
is that correct? (1 Reply)
I am trying to grep a section of .txt file...but once I grep the certain area of the file I would like to display all lines below it as well....how do I have to go about doing this...
example
grep "Sidney Crosby" hockey.txt
result
Sidney Crosby
Age
Goals
Assist
Can this be done... (8 Replies)
Shell : Bash shell (Fedora 26)
In the below text file (output.txt), I need to find all lines starting with the pattern pc. As you can see, only one line matches this condition (pc hello world).
But, my below 3 attempts return wrong output. How do I use the grep command correctly here ?
... (4 Replies)
Discussion started by: kraljic
4 Replies
LEARN ABOUT BSD
diff3
DIFF3(1) General Commands Manual DIFF3(1)NAME
diff3 - 3-way differential file comparison
SYNOPSIS
diff3 [ -exEX3 ] file1 file2 file3
DESCRIPTION
Diff3 compares three versions of a file, and publishes disagreeing ranges of text flagged with these codes:
==== all three files differ
====1 file1 is different
====2 file2 is different
====3 file3 is different
The type of change suffered in converting a given range of a given file to some other is indicated in one of these ways:
f : n1 a Text is to be appended after line number n1 in file f, where f = 1, 2, or 3.
f : n1 , n2 c Text is to be changed in the range line n1 to line n2. If n1 = n2, the range may be abbreviated to n1.
The original contents of the range follows immediately after a c indication. When the contents of two files are identical, the contents of
the lower-numbered file is suppressed.
Under the -e option, diff3 publishes a script for the editor ed that will incorporate into file1 all changes between file2 and file3, i.e.
the changes that normally would be flagged ==== and ====3. Option -x (-3) produces a script to incorporate only changes flagged ====
(====3). The following command will apply the resulting script to `file1'.
(cat script; echo '1,$p') | ed - file1
The -E and -X are similar to -e and -x, respectively, but treat overlapping changes (i.e., changes that would be flagged with ==== in the
normal listing) differently. The overlapping lines from both files will be inserted by the edit script, bracketed by "<<<<<<" and ">>>>>>"
lines.
For example, suppose lines 7-8 are changed in both file1 and file2. Applying the edit script generated by the command
"diff3 -E file1 file2 file3"
to file1 results in the file:
lines 1-6
of file1
<<<<<<< file1
lines 7-8
of file1
=======
lines 7-8
of file3
>>>>>>> file3
rest of file1
The -E option is used by RCS merge(1) to insure that overlapping changes in the merged files are preserved and brought to someone's atten-
tion.
FILES
/tmp/d3?????
/usr/libexec/diff3
SEE ALSO diff(1)BUGS
Text lines that consist of a single `.' will defeat -e.
7th Edition October 21, 1996 DIFF3(1)