Bash news with little bit git

10 Aug 2012 Nowadays I am on Internship at
FBK hlt unit
doing machine translation.

The cool (apart climbing, via ferrata,..stuff for different page) is that I am practicing bash programming and generally Unix command usage.

What I have learn/ revised and I should not forget?

pushd, popd, df -h, xdg-open(open file with preferred application)

$$ process id

nl number lines

basename, alternative to basename is bash expansion ${MY_VARR##*/}

screen

git reset RESET ~HEAD:file ; git show SHA:file ,git show HEAD~2 gives you files changed 2 commits ago

qstat (etc. sge cluster commands)

Screen tips

If you're attaching to an existing screen (which hasn't read 'defbce on' from ~/.screenrc yet) you have to do the following:

C-a and type:
 :bce on

Commands:

Reataching

screen -ls # list the sessions
screen -r # enter the unique regexp matching the session you want from screen -ls
screen -rd SESSION_NAME # if the session is still attached

CTRL-a d #  detach screen from the TTY and put it in the background.

Shifts input focus to the next and previous window, respectively.

CTRL-a n 
CTRL-a p

Set the title of the focus window.

CTRL-a SHIFT-a (CTRL-a A)

List available windows

CTRL-”

Splitting screen

 CTRL-a TAB to move between the panes
 CTRL-a SHIFT-s # (CTRL-a S) Split the right pane horizontally
 CTRL-a SHIFT-\ # (CTRL-a |)  Split the right pane vertically works on version 4.00.03jw4 (FAU) 2-May-06
 CTRL-a SHIFT-x #(CTRL-a X)   close the pane that has focus
 CTRL-a d # detach the session

Others

CTRL-[ # inspecting history buffer

qstat

qstat -r -u platek # displays full information about jobs of user platek