#!/bin/bash result="" count=0 while [[ $(echo "$result" | wc -w) -ne 1 ]]; do # 执行需要循环的操作,例如调用某个命令获取结果 result=$(your_command) count=$((count+1)) done echo "循环执行了$count次,最终结果为:$result" 在上述代码中,result变量用于存储每次循环的结果,count变量用...
char*ps){}intmain(){//这是一个始终运行的程序:bashwhile(1){//打印提示符printf("[User@myBash default]$ ");//可以自定义,跟着标准走fflush(stdout);//手动清空缓冲区//读取指令//指令分割//子进程
local errors=0 while :; do debug"Processes remaining: $*" for pid in"$@"; do shift if kill -0"$pid" 2>/dev/null; then debug"$pid is still alive." set --"$@""$pid" elif wait"$pid"; then debug"$pid exited with zero exit status." else debug"$pid exited with non-zero exi...
Type: Bug When I give it a new terminal, it does not let me enter and sends a message that tells me Terminal process "C:\Program Files\Git\bin\bash.exe '--login', '-i'" terminated with exit code 1. VS Code version: Code 1.76.2 (ee2b180, ...
exit 192 fi # Process the parameters while [ $# -gt 0 ] ; do case “$1” in -h | --help) # Show help printf “%s\n” “usage:$SCRIPT [-h][--help] -c companyid” exit 0 ;; -c ) shift if [ $# -eq 0 ] ; then ...
while [ "$val" -lt "5" ] do # 输出数值 echo "val=$val" # 将数值加1 ((val++)) done exit 0 7 使用break和continue控制循环 基本格式 break命令允许跳出循环。 continue命令类似于 break命令,只有一点重要差别,它不会跳出循环,只是跳过这个循环步。
### Loop example: 'while true ; do cams ; done' ### Semantics: [camid [totalframes+1 [framespersecond [threshold [r[otate] [degrees [exitwait]]] ### Please run 'au ffmpeg imagemagick termux-api' before running this script. Also ensure that Termux-api is installed, which is availab...
问题在于while循环是管道的一部分。在bash管道中，管道的每个元素都在其自己的子shellref(https://www....
contains the exit code returned by the previous command): sh -c "false" ; echo $? sh -c "false; exit" ; echo $? While this should print a 0: sh -c "false; exit 0" ; echo $? I'm not sure if the concept of the script "failing" when executing an exit makes sense, as...
Wait a little while. Then run 'bash ${0##*/}' again..." printf '\033]2; Run bash %s again...\007' "${0##*/} $ARGS" exit } _PRINTSTARTBIN_USAGE_() { printf "\\e[1;38;5;155m" _NAMESTARTARCH_ if [[ -x "$(command -v "$STARTBIN")" ]] then ...