< H1 > demand < H1 > needs to execute two commands in one sh file, as follows 1. tail -f log.txt 2. tail -f log2.txt is it feasible because both commands will cause terminal blocking? Or is there any other alternative solution. ...

failed to build a front-end project using jenkins, which is a problem when viewing jenkins s console log. this shows that the react-router-dom module cannot be found. But I was fine when I was on the local build. Excuse me, what is the problem? ...

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 ...

< 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...

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 ...

for example: restrict user A to run nginx (or other services) only on specific ports (such as 8080) ...

when using read, the following problems are encountered, which are not consistent with what you think. The code and results are as follows -sharp! bin bash IFS= read -d - var1 var2 <<< " 123 -" printf "%s n" "...

1. There is a text test.log, content that is: 1 an A 2 b B 3 c C 2. Execute while to get normal output cat test.log |while read item;do echo $item;done 1 an A 2 b B 3 c C 3. But executing while+awk loses the first line cat test.log |while r...

if the task is executed immediately, is there any way to postpone it for a period of time? Ask the boss to answer ...

for example, the files in the csv directory below lf-orders-2018-11-20 (1700) .csv lf-orders-2018-11-20 17002.csv file names contain spaces and are interspersed with parentheses in both Chinese and English. You need to replace them with an underscor...

this is the content of my sh file: for file in *.html do aa=`grep -o <div id = "vdl.* $file ` bb=`grep -o <a href = "inde.*< a> $file ` sed -i "s $aa $bb g" $file done execute: bash-x. 1.sh the res...

1, if you use the linux that comes with win10 to ssh 1: 2, use cmd to ssh other ssh software can display normally, the picture is not posted, wsl local adjustment normal response far end is centos no usr bin resize Type stty cols xx stty...

the environmental background of the problems and what methods you have tried in laravel framework, linux environment, xshell executes crontab scheduled tasks, they said that the root directory of the executed project is the absolute path, which I...