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 $2} | xargs grep PATT...
how to insert a line of code in a specified code block with commands such as sed , awk , and so on. suppose you have a file hello.php , with the following contents: piplin package, modify the app Providers AppServiceProvider.php file, and add...
In MacOS, the current user is the user but does not have access to var log xxx.log in the terminal. user1:bin soul$ ls -la var | grep log drwxr-xr-x 56 root wheel 1904 2 26 21:14 log user1:bin soul$ . searchd -c .. etc sphinx.c...
...
if the collection test has the following document format { "_id" : ObjectId("123456"), "name" : "test", "body" : [ { "hash" : &q...
traditional multi-page projects use html-webpack-plugin to load jsp or ftl files, because there is a special syntax inside, so directly using html-webpack-plugin will fail to package, and then use raw-loader on the basis of html-webpack-plugin t...
cut the rope, cut the rope of length n into m segments, and find the maximum value of the length product of each segment I would like to ask myself what is the idea of typing n and m ....