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Bash Snippets

获取脚本所在路径​

# 脚本所在路径
SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)

# 脚本所在路径的父路径
PARENT_DIR=$(dirname "${SCRIPT_DIR}")

逐行处理输出​

逐行处理文件​

while read -r line; do echo $line; done < FILENAME
# or
cat FILENAME | while read -r line; do echo "$line"; done

逐行处理命令输出​

while read -r line; do echo $line; done < <(ls -l)
# or
ls -l | while read -r line; do echo $line; done

打印连续数字​

# 打印数字 1 到 10
seq 1 10

# 打印等宽的数字 1 到 10
seq -w 1 10

Find​

找出大于某个大小的文件​

find . -type f -size +100M
find . -type f -size +100M -printf "%k KB %p\n" | sort -rnk 1

找出并且打印文件大小​

find . -name '*.txt' -exec ls -lh {}
find . -name '*.txt' -printf "%p %k KB\n"