linux命令 并行

# 安装GNU Parallel（如果未安装）
sudo apt-get install parallel

# 创建一个简单的脚本
echo -e '#!/bin/bash\nsleep 1\necho $1' > script.sh
chmod +x script.sh

# 使用GNU Parallel并行执行脚本
seq 10 | parallel ./script.sh

# 使用文件锁示例
echo -e '#!/bin/bash\nlockfile=/tmp/lockfile\nif ( set -o noclobber; echo "$$" > "$lockfile") 2> /dev/null; then\n    trap 'rm -f "$lockfile"; exit $?' INT TERM EXIT\n    sleep 1\necho $1\nrm -f "$lockfile"\nexit 0\nelse\n    echo "Failed to acquire lockfile: $lockfile." >&2\n    exit 1\nfi' > script_with_lock.sh
chmod +x script_with_lock.sh

seq 10 | parallel ./script_with_lock.sh

# 限制并行任务数量示例
seq 10 | parallel -j 4 ./script.sh