after zsh is installed and configured according to ...
recently discovered a strange phenomenon while learning to use NPM,. I can t use node modules clients babel, live-server in terminal after they are installed globally. Terminal returns a prompt for-bash: babel: command not found. I can t fix this p...
problem description for example, I installed jdk and set it in the system environment variables. Executing java or javac on the command line can execute the relevant commands, but I can t find java, in msys2 and prompt me that I can t find the c...
I executed the ls-rf command with gitbash under windows10 s computer and found that there is a. a.. file under each directory (I judged these two files by php s is_file). It s strange, what is this? ...
each line of the text file record.json is a json, and the four fields of each json, K1Mus4, together represent a key key, that asks for the number of times this key occurs, and the number of keys that are not repeated. try the idea is K1-4 splice key, t...
for example: restrict user A to run nginx (or other services) only on specific ports (such as 8080) ...
I want to write an environment variable passed by dockerfile, through docker run. I can customize and generate some files and generate some specific content such as environment variable I pass a json { nodes:{ node1:{ ip:xxx.xx.1...
for example, the file structure is as follows: file1 file2 directory file3 directory file4 now move all the above files and folders to a new folder newDirectory . How does the command line implement? filenames may be irregular filenames, and there m...
problem description there is a string style= "font-family: Microsoft Acer; font-size: 6.67pt; vertical-align: super " > 1code 2 . I want to replace 1Mague 2 with [1Mague 2] , where 1Mague 2 is just an example that may have multiple numbers but...
see the following code in shell scripting cookbook test.sh -sharp! bin bash if [ $-sharp -ne 3 ]; then echo "Usage: $0 URL -d DIRECTORY" exit -1 fi for i in {1..4}; do case $1 in -d) shift directory=$1 ...
how to insert a line of code in a specified code block with commands such as sed , awk , and so on. suppose you have a file hello.php , with the following contents: piplin package, modify the app Providers AppServiceProvider.php file, and add...
I want to convert a mudlib transcoding from gbk to utf8,. I can convert suffixed files such as * .c and * .h to * .c.bak and * .h.bak save, and then: find. -type f-name "* .c " | xargs-I {} sh-c "mv {} .bak {} " can be saved. the problem...
On mac, use the terminal tool (command line) to open the atom editor: -sharp cd desktop demo -sharp atom atom . recently wondered how to open the VS code editor, or subline test, using the terminal tool (command line). ...
-sharp! bin bash ARGS=`getopt -o ab: -l "argv3:,help" -- "$@"` eval set -- "${ARGS}" while true; do case "$1" in -a) echo "i am a" shift ;; -b) ...
< H2 > problem description < H2 > while writing a shell script, I need to git checkout to a branch after cd to a directory. however, in some cases, git checkout fails because the artificial modification file is not submitted. < H2 > excuse me < H2...
mac vue-cli initialization failed. Here is the error. $vue init webpack pro Unknown command init. vue-cli Failed to download repo vuejs-templates [object Object]: Response code 404 (Not Found) I used npm cnpm brew and tried the same error on one...
an error is reported after the update. Please help us to see how to solve it. Thank you ....
specifically refers to Electron applications, but if Node can do it, it s the same. We have some exe files to use in the program, so we need to make sure that the environment variables are normal when the program starts, and then run these command as ...
our company makes a software that uses a lot of third-party CMD commands of open source software. at present, we must install this software in order to register the corresponding command line in the system and then call it in our own software. We can a...
I don t understand a paragraph in the official website introduction to parallel: For better parallelism GNU parallel can distribute the arguments between all the parallel jobs when end of file is met. Below GNU parallel reads the last argument when ...
List<Blog> bList = sqlSession.selectList("getAllBlog"); mybatis : The type List is not generic; it cannot be parameterized with arguments <Blog> ...
step 1, in parent component: constructor(props) { super(props); this.state = { checkState: checked , enable:true } } this.setState({ checkState: unChecked , enable:false }) step 2: before calling the subcompon...
as shown in the figure the new Ubuntu17 server version is installed with a network cable plugged in. After the system is running, it automatically assigns an IP address of 192.168.214.155. There is no NetworkManager service in this default installa...
an array arr = [{ "id ": 1393, "sort ": 3}, { "id ": 1395, "sort ": 4}, { "id ": 1397, "sort ": 5}] split into two arrays arr1 = [{ "id ": 1393, "sort ": 3}, { "id ": 1397, "sort ": 5}] according to sort=4;...
has been looking for this calendar plug-in to meet the requirements for a long time because each date can be marked but he has no holiday and can only do it himself. after looking for a lot at night, I still don t have a suitable one . ...