Hi,
I am newbie in unix and just started learning it. I want to know what is the difference between an executable file and a file (say text file). How to create executable file? What is the extension for that? How to differentiate ? How does it get executed?
Thanks (1 Reply)
somehow one of my directories got a number of files whose names start with a dash -
e.g. -1129.txt
how can I remove them?
If I issue rm -1129.txt I get the message of illegal options
if I issue rm /-1129.txt I get a message that -1129.txt is not found
Lisa
HP-UX 11.23 i64 (3 Replies)
This is shell programming assignment.
It needs to create a file called .std_dbrc contains
STD_DBROOT=${HOME}/class/2031/Assgn3/STD_DB
(which includes all my simple database files)
and I am gonna use this .std_dbrc in my script file (read the data from the database files)
like this: .... (3 Replies)
In a makefile when you specify something like....
xxx-xx:
-$(yyy) $(zzz)
What does the"-" (hyphen) before the "$" mean? (assuming xxx-xx is the target name) (2 Replies)
Hi,
I am try to setup a FOR loop script to find out all the existing linux workstations in the network w/ ip address, hostname and linux version.
I created a basic FOR loop script:
for i in $(seq 1 254)
do
echo 10.72.169.$i >> result
ssh -o ConnectTimeout=3 root@10.72.169.$i "hostname"... (1 Reply)
How to know where a ln file point to.ln files is soft link which point to some file.
I want to get the absolute path of that file which my lm files pointing to. (5 Replies)
Hi
I did this command to tar the files but I got an error.
tar -cvpf filename.tar pathname/
It did tar the file filename.tar but then it gave me this error "Reach end of file before expected". The new tar file is about 2GB. So does that mean my tar file limit is 2GB? Is there a max limit... (4 Replies)
Hello,
I have few questions about file system in Unix and Linux.
1. What's the difference between Unix and Linux in their file system? Are they the same?
2. Is in Unix directory for administrator "/root" - like in Linux - Ubuntu or not?
3.Where is the users directory in Unix? Is it... (2 Replies)
Hi all
Question 1:
I want to use "awk" or "sed" to know how many "PASS after "FINISH"
i
Question 2:
I want to use "awk" or "sed" to know how many "PASS" after the *last* "FINISH ,it shoud be 2 in this file
Question 3.
I want to use "awk" or "sed" to know how many "PASS between "789" and... (5 Replies)
Discussion started by: yanglei_fage
5 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)