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Yes, I can never remember that. It's faster to just go to some online tool than to look up how to convert timestamps with `date`. Especially since I often switc

Yes, I can never remember that. It's faster to just go to some online tool than to look up how to convert timestamps with `date`. Especially since I often switch between Linux and "BSD" (macOS). Something like this would be nice: $ datez 1651483224 human-readable-timestamp $ datez human-readable-timestamp 1651483224

hiq 4y ago
> Yes, I can never remember that. Create aliases?
AlbertoGP 4y ago
Had never thought of building such a tool, but now that you mention it, there were cases where I had Unix sitmestamps in log/debug files for instance. I ended up using the web browser console to do a quick conversion. I just gave it a try now, as a shell script: #!/bin/sh # https://news.ycombinator.com/item?id=31233092 case "$1" in -*|"") echo "Usage: datez <unix-timestamp>" ;; *) if date -r "$1" 2>/dev/null; then date -r "$1"; else date -d "@$1"; fi esac Edit: tried to add the reverse, from human-readable-timestamp to Unix timestamp, and got a problem when the locale does not use the English language: the human-readable form is not understood by date as input! So the round-tripping version of the script has to set the locale to C: #!/bin/sh # https://news.ycombinator.com/item?id=31233092 # Needed for round-tripping: export LANG=C case "${1}" in -*|"") echo "Usage: datez <unix-timestamp|human-readable-timestamp>" ;; *) case "${1}" in (*[!0-9]*) date -d "${1}" +"%s" ;; (*) if date -r "${1}" 2>/dev/null; then date -r "${1}" else date -d "@${1}" fi esac esac Edit 2: it does round-trip by using a locale-independent format like "%Y-%m-%d %H:%M:%S %Z", which is anyhow the format I prefer: #!/bin/sh # https://news.ycombinator.com/item?id=31233092 # Needed for round-tripping if you use a locale-dependant format: #export LANG=C FORMAT="%Y-%m-%d %H:%M:%S %Z" case "${1}" in -*|"") echo "Usage: datez <unix-timestamp|human-readable-timestamp>" ;; *) case "${1}" in (*[!0-9]*) date -d "${1}" +"%s" ;; (*) if date -r "${1}" 2>/dev/null; then date -r "${1}" +"'${FORMAT}'" else date -d "@${1}" +"'${FORMAT}'" fi esac esac

hiq 4y ago

> Yes, I can never remember that. Create aliases?

AlbertoGP 4y ago

Had never thought of building such a tool, but now that you mention it, there were cases where I had Unix sitmestamps in log/debug files for instance. I ended up using the web browser console to do a quick conversion. I just gave it a try now, as a shell script: #!/bin/sh # https://news.ycombinator.com/item?id=31233092 case "$1" in -*|"") echo "Usage: datez <unix-timestamp>" ;; *) if date -r "$1" 2>/dev/null; then date -r "$1"; else date -d "@$1"; fi esac Edit: tried to add the reverse, from human-readable-timestamp to Unix timestamp, and got a problem when the locale does not use the English language: the human-readable form is not understood by date as input! So the round-tripping version of the script has to set the locale to C: #!/bin/sh # https://news.ycombinator.com/item?id=31233092 # Needed for round-tripping: export LANG=C case "${1}" in -*|"") echo "Usage: datez <unix-timestamp|human-readable-timestamp>" ;; *) case "${1}" in (*[!0-9]*) date -d "${1}" +"%s" ;; (*) if date -r "${1}" 2>/dev/null; then date -r "${1}" else date -d "@${1}" fi esac esac Edit 2: it does round-trip by using a locale-independent format like "%Y-%m-%d %H:%M:%S %Z", which is anyhow the format I prefer: #!/bin/sh # https://news.ycombinator.com/item?id=31233092 # Needed for round-tripping if you use a locale-dependant format: #export LANG=C FORMAT="%Y-%m-%d %H:%M:%S %Z" case "${1}" in -*|"") echo "Usage: datez <unix-timestamp|human-readable-timestamp>" ;; *) case "${1}" in (*[!0-9]*) date -d "${1}" +"%s" ;; (*) if date -r "${1}" 2>/dev/null; then date -r "${1}" +"'${FORMAT}'" else date -d "@${1}" +"'${FORMAT}'" fi esac esac