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In python, if I use '\', error, use "\", error again, use '\\' or "\\", the print result will be \\
If I want to print a single \, what can I do?
Thanks in advance

Sorry... I have solved this...

I am writing a python script to add comment to the result of ida pro.
My question is how to add my comment to the area of the assemble codes text?
I remember there is a simple function to realize...

Very clear, thank you very much!

What's the difference between $* and $@?
And I read that the $* has security problems, why?

Oh, I should really read the man page carefully...
Thanks a lot!

Ok, I see, actually I think the difference should happen for the ‘f'. But what I got is as follows, a lot of difference:
Henry@^_^> ls /etc/rc0.d/ -printf
263966 S30urandom 263974 S90halt ...

Sorry, I didn't get what you mean?

For example, in this command:

ls /etc/rc0.d/ -print
ls /etc/rc0.d/ -printfThe outputs are quite different, why?

How to show the type of my terminal?
Thanks in advance!

I just want a makefile and this makefile should be executed by "make makefile"

I have 30 files(all are .c file) based on each day of a month. And a app.c and app.h. Now I want to write a makefile to bulid the application based on the date of system. The 1st day I build the 1st...

Sorry for my language, I correct the question.
But thank you all the same

now I have a string

.a/b/c/done

I want to get "done" from it. That is the result should be "done"

sorry for my language before.

Thanks in advance

I dont understand this sentence:
count=`echo "${line}"|tr -cd '/'|wc -c
what does tr -cd mean?

---------- Post updated at 02:27 PM ---------- Previous update was at 02:08 PM ----------

tr -cd...

Thx,but i want shell.

I have a txt:
a/b/c/d
a/b/c
b/f/g/v/m

I want ot change this txt according to the number of '/'

the result should be like：
b/f/g/v/m
a/b/c/d
a/b/c

how to do that?

Thanks in advance
...

It works, thx

Here is a command: find -atime +30 >olds
This command will give us the files and directories which atime is more than 30 days ago.
But now I want just files to write in the olds, not directories....

Will this sentence return the decode of the string?
Why I put a string in it but the system say：

invaild load key

Yes, thank you
This will print the line I want.
But if B.txt is like this:

B.txt
code
when
google

I want to search in A.txt that which words are contain in A and in B, then print them....

Ok, thank you very much
But one more question, if there is a txt B
B.txt
code
when

Now I just know these two txts, I have to find the lines in A.txt which contains the strings in B.txt. How...

I want lines contain code and when, not code or when...

I have a .txt contains a lot of lines.
Now I want to write a shell script to find out all the lines which contain the strings I want, and print these lines.


For example:
A.txt

when you...