极简命令

1. 建立session tmux new -s my_session_name
2. 建立新窗口 prefix + c # c -> create
3. list所有窗口，然后选择某个窗口 prefix + w # W -> window，然后0，1，2，3，4选择需要的窗口；
4. 窗口命名 prefix + , # 逗号
5. 建立竖 …

1. loop in bash; Repeat a Unix command every x seconds forever; How to increment a variable in bash?

var=0; 
while true; 
do
    echo "Hi";
    var=$((var + 1));
    echo $var;
    sleep 1;
done

nvidia-smi error

The error is (tensorflow_p36) ubuntu@ip-172-31-36-1:~$ nvidia-smi NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

This problem can be resolved by installing the (currently) latest version of the Nvidia driver.

1. create an install file …

1. 优雅地使用命令行：Tmux 终端复用
2. Tmux入门教程
3. 玩转 vim 与 Terminal (视频)
4. vim + tmux - OMG!Code
5. Basic tmux Tutorial - Windows, Panes, and Sessions over SSH
6. Raspberry Pi 4 Cooling
7. Getting Started With The Raspberry Pi 4 - Use It As A Linux …

regular expression example

We have many sql alike code to patch the system. The purpose is to clean the code to do two things: 1) to find what variables are used; 2) to find the value used in the code. That is, transfer to key-value form so that it can …

Shares From Internet

1. Linux bash date time

export day=2019-06-02
#day=$(date +%Y-%m-%d)
sunday_1=$(date -d "$day -$(date -d $day +%w) days" +%Y-%m-%d)  # last sunday include current date
sunday_2=$(date -d "$day -$(date -d $day +%u) days" +%Y-%m-%d)  # last sunday not include current date …

python regular expression to clean the RMP data.

import re

strtest = """  3602433631519" />                                </td>
                <td> 7 </td>
                <td>< = "> </a></td>
                <td>HRB_HighClaim_Sideline</td>

                <!-- Align Rule condition to variable expression -->
                    <td></td>

                <td>MVEL</td>
                <td>
                        <pre class="code">get(&quot;$BFS.hrb_claims_by_customer_us.n_claim_count&quot;)!\
=empty &amp;&amp; 
get(&quot;$var_001&quot …

awk -F, '{OFS="\t";print $3,$4}' mo_orders_weekly_2019-04-27.txt   ==>   awk '{print $4","$5}' mo_orders_weekly_2019-04-27.txt

cat mo_orders_weekly_2019-04-27.txt | cut -d ',' -f3    ==>    cat mo_orders_weekly_2019-04-27.txt | cut  -f3-4

awk -F, '{OFS=",";print $1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$20,$21}' infile.csv > outfile.csv

something else to consider …