; done while read -r line; do ...; done <myfile #If only one word a line, simply for line in $(cat myfile); do echo $line; read -n1; done #Loop through an array for i in "${arrayName[@]}"; do echo $i; done While loop, # Column subtraction of a file (e.g. a ...
; done <myfile #If only one word a line, simply for line in $(cat myfile); do echo $line; read -n1; done #Loop through an array for i in "${arrayName[@]}"; do echo $i;done While loop, # Column subtraction of a file (e.g. a 3 columns file) while read a b c; ...
我的until循环可以这样工作:until [[ $var = true ]]; do sleep 5 var=$(very-long|oneliner$var为false时,它会失败,因为do之后的var从未像我希望的那样更新。我之所以了解到这一点,是因为在某种程度上,循环放在一个子shell中,那 浏览11提问于2020-05-16得票数 0 回答已采纳 2回答 如何将变量值从...
While Loop Within the while loop, the script performs the following operations: Calculate Filled Slots: Determines how many # characters are needed in the progress bar. bash let filled_slots=progress*20/total_steps Generate Progress Bar: Filled (#) and unfilled (-) portions of the progress bar...
for loop 1 liner for ((i=1; i<=100;i++)) do echo $i ; done While true (Execute forever) Handy if you just want a script to run and repeat the same thing over and over again. Doesn't stop till you kill it. while true ...
(curl https://raw.githubusercontent.com/onceupon/Bash-Oneliner/master/README.md | pandoc -t org) # 或者使用 emacs (在终端上先按Ctrl+x,再按Ctrl+c退出) emacs -nw --eval '(org-mode)' --insert <(curl https://raw.githubusercontent.com/onceupon/Bash-Oneliner/master/README.md | ...
for n in a b c d e do while true do if [ $RANDOM -gt 20000 ] then printf . break 2 ## break out of both while and for loops elif [ $RANDOM -lt 10000 ] then printf '"' break ## break out of the while loop fi done done echo 继续 在循环内部, continue命令通过传递任何剩余...
pregp-cloop.sh We can use that count of instances in our script. If the value returned by pgrep is greater than one, there must be more than one instance running, and our script will close down. We’ll create a script that uses this technique. We’ll call it pgrep-solo.sh. ...
while ...; do ...; donewhile loop until ...; do ...; doneuntil loop Misc (( ... ))arithmetic evaluation select word in ...; do ...; doneuser selections Expansions and substitutions¶ Introduction to expansions and substitutions ...
Python中的语句可以是一个复合语句，也可以是一个或多个简单语句，由;s分隔。复合语句是由:终止的行和...