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Size: 1823
Comment: Remove some inconsistant useless quotes
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| (If you were looking for option processing, see [[BashFAQ/035]].) The following functions are frequently asked for in #bash, so we hope you find them useful. |
(If you were looking for option processing, see [[BashFAQ/035]].) The following functions are frequently asked for in #bash, so we hope you find them useful. |
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| # Usage: warn "message" | # Usage: warn "format" ["arguments"...] |
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| printf '%s\n' "$@" >&2 | local fmt=$1 shift printf "script_name: $fmt\n" "$@" >&2 |
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| # Usage: some_command || die "message" | # Usage: some_command || die "message" ["arguments"...] |
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| local st="$?" | local st=$? |
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| # Usage: if blah; then die "message" status_code; fi | # Usage: if blah; then die status_code "message" ["arguments"...]; fi |
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| local st="$2" warn "$1" |
local st=$1 shift warn "$@" |
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| # Usage: some_command || die "message" [status code] | # Usage: some_command || die [status code] "message" ["arguments"...] |
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| local st="$?" case "$2" in *[^0-9]*) :;; *) st="$2";; esac warn "$1" |
local st=$? if [[ $1 != *[^0-9]* ]]; then st=$1 shift fi warn "$@" |
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{{{ ## # warn: Print a message to stderr. # Usage: warn "message" # warn() { printf '%s\n' "$@" >&2 } ## # die (optional status version): Print a message to # stderr and exit with either the given status or # that of the most recent command. # Usage: some_command || die "message" [status code] # some_command && die "message" [status code] die() { local st=$? case $2 in *[^0-9]*|'') :;; *) st=$2;; esac warn "$1" exit "$st" } }}} |
Common utility functions (warn, die)
(If you were looking for option processing, see BashFAQ/035.) The following functions are frequently asked for in #bash, so we hope you find them useful.
##
# warn: Print a message to stderr.
# Usage: warn "format" ["arguments"...]
#
warn() {
local fmt=$1
shift
printf "script_name: $fmt\n" "$@" >&2
}
###
### The following three "die" functions
### depend on the above "warn" function.
###
##
# die (simple version): Print a message to stderr
# and exit with the exit status of the most recent
# command.
# Usage: some_command || die "message" ["arguments"...]
#
die () {
local st=$?
warn "$@"
exit "$st"
}
##
# die (explicit status version): Print a message to
# stderr and exit with the exit status given.
# Usage: if blah; then die status_code "message" ["arguments"...]; fi
#
die() {
local st=$1
shift
warn "$@"
exit "$st"
}
##
# die (optional status version): Print a message to
# stderr and exit with either the given status or
# that of the most recent command.
# Usage: some_command || die [status code] "message" ["arguments"...]
#
die() {
local st=$?
if [[ $1 != *[^0-9]* ]]; then
st=$1
shift
fi
warn "$@"
exit "$st"
}##
# warn: Print a message to stderr.
# Usage: warn "message"
#
warn() {
printf '%s\n' "$@" >&2
}
##
# die (optional status version): Print a message to
# stderr and exit with either the given status or
# that of the most recent command.
# Usage: some_command || die "message" [status code]
# some_command && die "message" [status code]
die() {
local st=$?
case $2 in
*[^0-9]*|'') :;;
*) st=$2;;
esac
warn "$1"
exit "$st"
}