if [[ ${arr[*]} == *sub_string* ]]; then printf '%s\n' "sub_string is in array." fiUsing a case statement:case "$var" in *sub_string*) # Do stuff ;; *sub_string2*) # Do more stuff ;; *) # Else ;; esacCheck if string starts with sub-stringif [[ $var == sub_...
If you’re making Bash programs for you or for others to use one way you can get user input is to specify arguments for users to provide to your program, as we discussed in the previous section. You could also ask users to type in a string on the command line by temporarily stopping ...
This is an alternative to sed, awk, perl and other tools. The function below works by abusing word splitting to create a new string without leading/trailing white-space and with truncated spaces.Example Function:# shellcheck disable=SC2086,SC2048 trim_all() { # Usage: trim_all " example ...
Check if string starts with sub-stringif [[ $var == sub_string* ]]; then printf '%s\n' "var starts with sub_string." fi # Inverse (var does not start with sub_string). if [[ $var != sub_string* ]]; then printf '%s\n' "var does not start with sub_string." fi...
I would like to do something if the output of a shell script contains the string "Caddy 2 serving static files on :2015". This is what I have so far but the beach ball is just spinning. It seems it is because of the last command in my bash script which starts a server. There is...
It then checks if the entered password ('$password') matches the correct password ('$correct_password') using an if statement with a string comparison ([[ ... ]]). If the passwords match, the script prints "Access granted" and exits the loop using the "break" statement. ...
例如,给定: string="hello-world" prefix="hell" suffix="ld" 如何获得以下结果?..."o-wor" 答:使用bash语法的方法: $ prefix="hell" $ suffix="ld" $ string="hello-world" $ foo=${string#"$prefix...hello-world" prefix="hell" suffix="ld" $ echo "$string" | sed -e "s/^$prefix//...
python -c"import os; print [x for x in dir(os) if x.startswith('r')]" 输出结果为: ['read', 'readlink', 'remove', 'removedirs', 'rename', 'renames', 'rmdir'] 设你有一个 Python 模块(文件)mymodule.py,内容如下: # mymodule.py ...
6162# get current shell name63functioncf_shell_name() {64local name=$(ps-ocommand= -p $$ |awk'{print $1}')65ifcf_starts_with $name"-";then66cf_substring $name167else68echo$name69fi70}7172# check current shell is bash73functioncf_is_bash() {74[[ `cf_shell_name` ="-bash"|...
python-c"import os; print [x for x in dir(os) if x.startswith('r')]" 输出结果为: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ['read','readlink','remove','removedirs','rename','renames','rmdir'] 设你有一个 Python 模块(文件)mymodule.py,内容如下: ...