1 | # Two functions I actually use, all the time.
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2 | #
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3 | # To keep depenedencies small, this library will NEVER grow other functions
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4 | # (and is named to imply that.)
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5 | #
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6 | # Usage:
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7 | # source --builtin two.sh
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8 | #
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9 | # Examples:
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10 | # log 'hi'
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11 | # die 'expected a number'
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12 |
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13 | if command -v source-guard >/dev/null; then # include guard for YSH
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14 | source-guard two || return 0
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15 | fi
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16 |
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17 | log() {
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18 | ### Write a message to stderr.
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19 | echo "$@" >&2
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20 | }
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21 |
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22 | die() {
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23 | ### Write an error message with the script name, and exit with status 1.
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24 | log "$0: fatal: $@"
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25 | exit 1
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26 | }
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27 |
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