brew install coreutils# timelist.txt
3/16 17:26 ~ 17:29 JST
3/18 18:10 ~ 18:52 JST
# JST to PDT
$ cat timelist.txt | bash convert_date.sh America/Los_Angeles
3/16 17:26 ~ 17:29 JST (03/16 01:26 ~ 03/16 01:29 PDT)
3/18 18:10 ~ 18:52 JST (03/18 02:10 ~ 03/18 02:52 PDT)| #!/bin/bash | |
| to_tz="${1}" | |
| shopt -s expand_aliases | |
| if type gdate > /dev/null; then | |
| alias date='gdate' | |
| fi | |
| cat - | while read line; do | |
| set ${line} | |
| __date=${1} | |
| start=${2} | |
| end=${4} | |
| __tz=${5} | |
| pdt_start=$(TZ="${to_tz}" date -d "${__date} ${start} ${__tz}" +'%m/%d %H:%M') | |
| pdt_end=$(TZ="${to_tz}" date -d "${__date} ${end} ${__tz}" +'%m/%d %H:%M') | |
| to_tz_abbr=$(TZ="${to_tz}" date -d "${pdt_end}" "+%Z") | |
| echo "${__date} ${start} ~ ${end} ${__tz} (${pdt_start} ~ ${pdt_end} ${to_tz_abbr})" | |
| done |