vi : for write to file
- i: insert
- Ctrl+c -> to command line
- :wq -> write and quit
- x -> delete one character on the right
- d -> delete one line below
grep: get value on a row from a file
- ex : more data_dummy.txt | grep status=ok
awk : get value on a clumn from a file
- awk -F ‘;’ -> get column with separate with “;”
- ex: awk ‘{i($max ==””){$max=$1};if($max<$1){$max=$1} END {print max}’ data_dummy.txt
tail : get the last lines(10) from a file
- ex: tail dummy_data.txt
ssh: remote any computer using ssh
- ex: ssh 192.168.21.17
> : write to file
- ex: more data_dummy.txt | grep status=ok > data_ok.txt
<: read from file
- ex: grep status = ok < data_ok.txt
ls : list file from a folder
- ls -ltr -> list and details
- ls *data*dummy.txt -> list file with word “data” and the last is “dummy.txt”
pwd : where are u right now
- pwd
od : view invisible character
- od -a data.txt
sed: to get text in spesific lines:
- more data.txt | sed -n ‘2p’
cat: to view text with visible/invisible character
- cat -v <filename>
tr : remove character from file
- tr -d ‘r’ < data.txt > data2.txt -> remove character ‘r’ on data.txt and write to data2.txt
zip : zipping file(s) /folder(s)
- zip datazip /tmp/data.txt
- zip -r datazip /tmp/data/ -> for folder (-r means include subfolder)
cp : copy file(s)/ folder (s)
- cp /mnt/sdb1/data.txt /tmp/datacopy.txt
- cp -r /mnt/sdb1/data/ /tmp/datacopy/
ncftpput: transfer file(s) or folder into another server (unix)
- $ ncftpput –R –v –u “username” 172.16.1.3 /nixcraft/forum /tmp/phpbb -> from /tmp/phpbb (local) to /nixcraft/forum (target)
scp:
| $ scp your_username@remotehost.edu:foobar.txt /some/local/directory |
top : processor utilization
- top
- top -n 10
#BashScript
FYI, if you want to learn about how to write BaschScript, I assume you learn from http://linux#config.#org/Bash_scripting_Tutorial
