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Hi Corona688:

Thanks!

Hi yazu,

Thanks. The information is very helpful.

Hi,

I wrote a small program to read lines from a file and count the lines. The program is as below:

filename=$1
count=0
cat $filename | while read -r line
do
printf "%5d:%s\n"...

Hi yazu and psshah,

Thanks a lot!

Hi,

I want to add a path to PATH. I added export PATH=$PATH:$HOME/newpath in the ~.profile. I exit the shell and reenter shell. After I type echo $PATH. The new path is not added. I don't know...

Hi,

In SUSE linux, it looks like that I can update the package using YAST or install the package from source. So, which way works better? Also, if i install the package of new version. Do i need...

Thanks!

Hi,

The current directory has two files: a, b. echo ** gets the result a b, instead of a b a b. I don't understand this. Can someone give some explanation?

Thanks!

Hi Skrynesaver,

Thanks!

Hi,

I read the book of <<unix shell programming>>. The regular expression ^\(.\)\1 matches the first character on the line and stores it in register 1. Then the expression matches whatever is...