如何仅显示指定两个月份修改或创建的文件？无需grep且支持切换月份

Got it, let's work through your two file filtering requirements without relying on grep, and make sure switching month combinations is a breeze. Here's how to handle each case:

The find command is perfect here because it can directly evaluate file modification timestamps with human-readable date inputs—no grep needed. We'll use variables to define your target months so you can swap them out in seconds.

Example Command (GNU/Linux) #

# Set your target months here (format: YYYY-MM)
TARGET_MONTH1="2024-03"  # March
TARGET_MONTH2="2024-04"  # April

# Calculate the date range: start of first month, start of the month after the second
START_DATE="${TARGET_MONTH1}-01"
END_DATE=$(date -d "${TARGET_MONTH2}-01 +1 month" +%Y-%m-%d)

# Find all files modified between START_DATE (inclusive) and END_DATE (exclusive)
find /path/to/your/directory -type f -newermt "${START_DATE}" ! -newermt "${END_DATE}"

How to Switch Months #

Just update TARGET_MONTH1 and TARGET_MONTH2—for example, change them to "2024-01" and "2024-03" to filter January and March modified files.

For macOS (BSD find/date) #

BSD tools use slightly different syntax for date calculations. Replace the END_DATE line with this:

END_DATE=$(date -v+1m -j -f "%Y-%m-%d" "${TARGET_MONTH2}-01" +%Y-%m-%d)

This follows the same variable-driven pattern, but we'll target file creation timestamps instead of modification times.

Example Command (GNU/Linux) #

# Set your target creation months here
CREATE_MONTH1="2024-01"  # January
CREATE_MONTH2="2024-02"  # February

# Calculate the creation date range
CREATE_START="${CREATE_MONTH1}-01"
CREATE_END=$(date -d "${CREATE_MONTH2}-01 +1 month" +%Y-%m-%d)

# Find all files created in the target months
find /path/to/your/directory -type f -newerct "${CREATE_START}" ! -newerct "${CREATE_END}"

For macOS (BSD find) #

BSD find uses the -B flag to target birth (creation) time. Adjust the find command to:

find /path/to/your/directory -type f -Bnewerct "${CREATE_START}" ! -Bnewerct "${CREATE_END}"

Bonus: Filter Any Year's Target Months #

If you want to find files created in, say, January and February regardless of year, you can combine find with stat and awk (still no grep):

# Filter files created in Jan (01) or Feb (02), any year
find /path/to/your/directory -type f -exec stat -c "%w %n" {} \; | awk '$1 ~ /^[0-9]{4}-(01|02)-/ {print $2}'

This works by printing each file's creation time and name, then using awk to match lines where the timestamp starts with a year followed by -01- or -02-, then outputting the filename.

内容的提问来源于stack exchange，提问作者Avoxy