Find and kill zombie process

 ## In linux, 

## find zombie process , grep Z or 'defunc'

host:~$ ps   aux  | grep Z

host:~$ ps aux  | grep defunc

   option:  a  : all with tty, include other users

                 u : display user-oriented format

                  x : processes without controlling ttys

## parent process must be killed  to kill  zombie prcess, find parent , using 'pstree'

host:~$ pstree -paul    
   options :  

                   -p : show pids

                   -a : show ommand line arguments

                   -u : show uid transitions

                   -l : don't truncate long lines

find by size

find by size

find ./ -type file -size +500M 

option: 

b - 512 block

c - byte

w - two bytes words

k - kilo

M - mega

G - giga

# find and display size. human readable

find ./ -type file -size +500M -exec ls -lh {} \;

September 19, 2019 at 02:22PM

batch replace string in files by command line

batch replace string in files by command line

sed -i — ‘s/want_str/rep_str/g’ file_patterns

ex) -i — ‘s/abc/123/g’ *.txt

November 27, 2018 at 01:06PM

Passing all arguments to other functions

Passing all arguments to other functions

using $@

ex)  run.sh

    # instead  

   oher_command $1 $2 ...

    # with

    other_command $@ 

!! That’s all.

October 31, 2018 at 12:30PM

grep keyword recursively

grep -R —include’{file patterns}’ {keyword}

## example 

grep -R --include '*.xml' server  # find server in xml files. 

Finding older files than specif times

# created time is more than 24hour

    find . -mtime +1    

#find files and delete 

  find  . -mtime +1 -exec rm  {} \; 

Change vi color scheme

It is based on http://kb.mediatemple.net/questions/1565/Enabling+vi+syntax+colors#gs

1) open .vimrc    at home directory
2) Add below codes.
      syntax on
      colorscheme desert
3) Save it.
4) open code file by vi.

** color scheme list
    default, desert, elflord...

Enjoy it.

terminal backspace config

add in .profile

stty erase ^H 

Kill specified process list

kill `ps aux | grep keyword| grep -v grep | awk '{print $2}'`

# check keyword and kill processes by pid from awk