Learn a little shell every day: Linux shortcuts

cat and grep search keywords

[root@hadoop-master test]# cat -n file1.txt |grep "1"
     1	第1行
    10	第10行

find search file content

The following is to search the current folder ending with .txt, and the content contains "5"

[root@hadoop-master test]# find ./*.txt  -type f | xargs grep "5"
./file1.txt:第5行
./file2.txt:第5行

scp upload and download

Upload
Upload a single file to the server

[root@hadoop-master test]# scp ./uploadScpTest.txt root@hadoop-slave1:/usr/local/test
uploadScpTest.txt  

Upload directory to server

[root@hadoop-master test]# scp -r ./ root@hadoop-slave1:/usr/local/test
uploadScpTest.txt  

Download Download
files from the server to a local directory

[root@hadoop-master test]# scp root@hadoop-slave1:/usr/local/test/scptest.txt ./
scptest.txt    

Download the entire directory to the local

[root@hadoop-master test]# scp -r root@hadoop-slave1:/usr/local/test ./
file1.txt   

curl sends a POST request

curl -H "Content-Type: application/json" -X POST -d '{"user_id": "123", "coin":100, "success":1, "msg":"OK!" }' "http://192.168.0.1:8001/test"

CURL sends a POST request

Commonly used shortcut keys and commands

rz and sz of xshell

rz upload file
rz: received (received) , the server receives the file, that is, upload it locally to the server.

sz download file
sz: send (send) , the server sends the file, that is, download the file locally from the server.