in the shell script, I have the following variables to hold the url information: how do I get product_patch_20190218162130_sign.pkg? Search the awk tutorials on the Internet, learn awk fundamentals and write the following sentence: echo $urlfile |...
for example grep 20180906834424 test.log | awk {print $2} the above code will produce a result. How can I use this result as a parameter of grep to re-search the test.log file? grep 20180906834424 test.log | awk {print $2} | xargs grep PATT...
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...
my Maven dependency tree is as follows Self +- A | - C 2.x - B - C 3.x the project relies on two libraries of AMagi B, which uses different versions of the C library, and the reference to C is necessary, and the two versions are not compatib...
data loss after react mobx page refresh Proxy {length: 0, Symbol (mobx administration): ObservableArrayAdministration} 0: "https: res.cloudinary.com ddycd5xyn image upload v1550627617 k0yqomh9yzoarfis82km.jpg "1: " https: res.cloudinary.com ddycd...
the effect to be obtained is [{ "name ": "aaa ", "id ": "1 ", "sex ", "man "}, { "name ": "bbb ", "id ": "2 ", "sex ", "woman "}, {}.] now the display is { "name ": "aaa ", "id ": "1 ", "sex ", "man "} { "name ": "bbb ", "id ": "2 ...
question: in an h5 mobile page, has such a parent-child relationship: sliding elements up and down = > left and right sliding elements = > Click elements if there are sliding up and down (drop-down refresh), left and right sliding (rotation switch...
< H2 > docker is equipped with the master and slave of redis < H2 > configuration is also very simple. Slave seems to be copied repeatedly (if there is a mistake, it is still returning to retry) docker-compose version: 3 services: redis-mast...