Prefix each line with a timestamp
timestamp prefixes each line received on standard input with a
timestamp in the format YYYY-MM-DD HH:MM:SS.
Please see the included INSTALL.md file.
Usage: timestamp [OPTIONS] [FILENAME] [TEXT [TEXT …]]
positional arguments:
FILENAME optional output file
TEXT optional startup message
optional arguments:
-h, --help show this help message and exit
-v, --version show version information and exit
-c, --copyright show copying policy and exit
-u, --utc use UTC rather than local time
-r, --rfc3339 use RFC 3339 compliant timestamps
-t, --tai64n use TAI64n timestamps
-f FORMAT, --format FORMAT
datetime format (default: ‘%F %T’)
Please see strftime(3) for possible conversion specifications.
Any TEXT after FILENAME will be stamped and written verbatim as
the first line before timestamp starts reading from standard
input. Use the pseudo filename ‘-’ for standard output.$ (echo A; sleep 2s; echo B; sleep 3s; echo C) | timestamp
2020-11-20 10:29:44 A
2020-11-20 10:29:46 B
2020-11-20 10:29:49 C
$ (echo A; sleep 2s; echo B; sleep 3s; echo C) | timestamp --tai64n
@400000005fb78c9e339ac51c A
@400000005fb78ca033d3fc29 B
@400000005fb78ca334742e9a Cstampit is a special flavour of timestamp that
- uses RFC 3339 compliant timestamps with µs precision,
- does not accept custom formats, but
- accepts text to be stamped as argument(s), and
- appends stamped lines to a file when the
--outputoption is used.
This makes stampit a useful candidate for e.g.
- posting to a twtxt.txt file, or
- logging one-line events to an ever-growing logfile.
Usage: stampit [OPTIONS] [TEXT [TEXT …]]
positional arguments:
TEXT optional text to timestamp
optional arguments:
-h, --help show this help message and exit
-v, --version show version information and exit
-c, --copyright show copying policy and exit
-l, --localtime use local time rather than UTC
-o OUTPUT, --output OUTPUT
path of output file
If no TEXT is given on the command line, text is read
from standard input and stamped one line at a time.
RFC 3339 timestamps are given with µs precision.$ stampit Frække frølår
2017-04-06T16:49:21.727686+00:00 Frække frølår
$ stampit -o twtxt.txt Frække frølår
$ echo Crème brûlée | stampit -o twtxt.txt
$ cat twtxt.txt
2017-04-06T16:50:47.250455+00:00 Frække frølår
2017-04-06T16:51:02.068170+00:00 Crème brûlée😄
