i 've noticed the following difference between freebsd cp and gnu cp
from the freebsd cp man page:
Code:
-R ... If the source_file ends in a /, the contents of the directory are copied rather than
the directory itself. ...
on gnu cp from the man page
while on gnu cp manpage:
Code:
‘-r' ‘--recursive'
Copy directories recursively. Symbolic links are not
followed by default; see the --archive (-a), -d, --dereference (-L),
--no-dereference (-P), and -H options. Special files are copied by
creating a destination file of the same type as the source; see the
--copy-contents option. It is not portable to use -r to copy symbolic
links or special files. On some non-gnu systems, -r implies the
equivalent of -L and --copy-contents for historical reasons. Also, it
is not portable to use -R to copy symbolic links unless you also
specify -P, as POSIX allows implementations that dereference symbolic
links by default.
the difference above creates problems when one wants to copy all files from a directory to another directory, without copying
the directory itself.
for example what i want to do is copy some files from a source directory and overwrite some files in
the destination directory, i want to do this using a script.
if i ran the script on freebsd i could do something like this
Hi Experts,
ps command behavior in Redhat is such that it outputs all the output(of long lengths). In Unix the ps command output was limited to only 80 chars. In that if you pipe its output to another command hen the 80 chars restriction wouldn't be there. This 80 char limitation will only be... (14 Replies)
I see strange results when sorting with -n options and I wander if somebody can explain it.
Input file and two results:
$ cat aa
14
-1
11
-1
0
-1
0
$ sort -u aa
-1
0 (1 Reply)
fg = foreground bg = background
I have a cobol program that I start with a very simple script.
The script is not at fault as it has not changed and the program worked in fg and bg before.
I have altered the logging in the program and moved my cursor declare to working storage.
The program runs... (6 Replies)
I am little bit confused by the behaviour of rm in Ubuntu.
It seems that as a regular user I can delete files owned by another user even when the permissions are set to 644.
Here is an example:
cjohnson@carbon:~/test$ sudo touch testfile
cjohnson@carbon:~/test$ ls -al
total 8
drwxr-xr-x... (2 Replies)
Hi,
I have snippet like the following
x="1"
prompt1="hi"
if I say
eval echo \$prompt$x then it is giving o/p "hi"
if I say `eval echo \$prompt$x` here it is giving 1 !
if I add one more escape character i.e.
`eval echo \\$prompt$x` then it is giving "hi"
Can you please... (3 Replies)
I have a variable, defndata, which is a number (fetched from a file using awk).
I want that if defndata is not initialized (that is its not found in the file using awk), then to execute a block of statements, otherwise execute another block.
if
then
....
else
...
fi
Now this... (4 Replies)
Can some-one give me a view to this :
I have a directory in an unix server, having permissions r-xr-xr-x .This directory is basically a source directory.
Now there is another directory basically the destination directory which has all the permissions.
Note:I log in as not the owner,but user... (5 Replies)
Hi,
I have one doubt, in the below program, if I declare char *b inside the main(), the function compiles & runs properly. But at the same time, if I declare it globally it compiles but when we run it, it creates core dump (segmentation fault) both in C & C++. It is not being trapped by catch... (7 Replies)
Gentlemen,
OK, I have an odd issue here perhaps someone can shed some light for me. When running a script as its user/owner the below pause/wait works just fine. When a developer has used su - to assume the username the pause does not happen... This is a HPUX11.00 machine, I have copied the blurb... (1 Reply)
