大约有 800 项符合查询结果（耗时：0.0067秒） [XML]
Get current time in seconds since the Epoch on Linux, Bash
...tf -v var '%(%s)T' -1
No external programs and no subshells!
Since Bash 4.3, it's even possible to not specify the -1:
printf -v var '%(%s)T'
(but it might be wiser to always give the argument -1 nonetheless).
If you use -2 as argument instead of -1, Bash will use the time the shell was start...
How do SO_REUSEADDR and SO_REUSEPORT differ?
...tyle UNIX named "Darwin", based on a rather late fork of the BSD code (BSD 4.3), which was then later on even re-synchronized with the (at that time current) FreeBSD 5 code base for the Mac OS 10.3 release, so that Apple could gain full POSIX compliance (macOS is POSIX certified). Despite having a m...
How to loop through a directory recursively to delete files with certain extensions
...th set -o globstar instead of shopt -s globstar). Furthermore, in bash <4.3, this traverses symbolic links to directories as well as directories, which is usually not desirable.
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How to open, read, and write from serial port in C?
...fy the desired environment:
...
_BSD_SOURCE ISO C, POSIX, and 4.3BSD things.
_SVID_SOURCE ISO C, POSIX, and SVID things.
...
*/
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YYYY-MM-DD format date in shell script
...nt date as yyyy-mm-dd in $date
# -1 -> explicit current date, bash >=4.3 defaults to current time if not provided
# -2 -> start time for shell
printf -v date '%(%Y-%m-%d)T\n' -1
# put current date as yyyy-mm-dd HH:MM:SS in $date
printf -v date '%(%Y-%m-%d %H:%M:%S)T\n' -1
# to print dir...
How to print matched regex pattern using awk?
...e same as -E (-r added in 2010). Anyway, try with -E (gnu sed added -E in 4.3)
– Juan
Sep 6 '19 at 0:44
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Position of least significant bit that is set
...position of the first bit set, or 0 if no bits are set in i.
Conforming to
4.3BSD, POSIX.1-2001.
Notes
BSD systems have a prototype in <string.h>.
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What are the calling conventions for UNIX & Linux system calls (and user-space functions) on i386 an
...text) is at the link given Linux Assembly Tutorial specifically in section 4.3 Linux System Calls
– Michael Petch
Oct 26 '18 at 0:50
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Convert HTML to NSAttributedString in iOS
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Requires min deployment of iOS 4.3 :( None-the-less, very impressive.
– Oh Danny Boy
Mar 20 '12 at 17:37
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How can I escape white space in a bash loop list?
...(At least, it doesn't appear on Solaris 8, and I don't think it was in AIX 4.3 either.) I guess the rest of us may be stuck with piping to xargs...
– Michael Ratanapintha
Nov 19 '08 at 6:00
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