2Shirt/duplicity-backup.sh
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Fix "line 89: 4: Bad file descriptor" when printing usage without config set up

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zertrin 2016-09-10 14:56:05 +02:00
parent 26dc5cab55
commit 5a5244e164
1 changed files with 8 additions and 5 deletions
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13
duplicity-backup.sh
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@ -42,6 +42,12 @@ CONFIG="duplicity-backup.conf"
# Script Happens Below This Line - Shouldn't Require Editing # # Script Happens Below This Line - Shouldn't Require Editing #
############################################################## ##############################################################
# make a backup of stdout and stderr for later
exec 6>&1
exec 7>&2
# ------------------------------------------------------------
usage(){ usage(){
echo "USAGE: echo "USAGE:
$(basename "$0") [options] $(basename "$0") [options]
@ -86,7 +92,7 @@ echo "USAGE:
EXCLIST (directories excluded) = ${EXCLIST[*]:0} EXCLIST (directories excluded) = ${EXCLIST[*]:0}
ROOT (root directory of backup) = ${ROOT} ROOT (root directory of backup) = ${ROOT}
LOGFILE (log file path) = ${LOGFILE} LOGFILE (log file path) = ${LOGFILE}
" >&4 " >&6
} }
DUPLICITY="$(which duplicity)" DUPLICITY="$(which duplicity)"
@ -268,9 +274,6 @@ fi
# fd5 is never shown on screen but always logged (for delimiters in the log) # fd5 is never shown on screen but always logged (for delimiters in the log)
# #
# make a backup of stderr for later
exec 6>&2
# fd2 and fd3 are always logged and shown on screen via tee # fd2 and fd3 are always logged and shown on screen via tee
# for fd2 (original stderr) the output of tee needs to be redirected to stderr # for fd2 (original stderr) the output of tee needs to be redirected to stderr
exec 2> >(tee -ia "${LOGFILE}" >&2) exec 2> >(tee -ia "${LOGFILE}" >&2)
@ -1050,6 +1053,6 @@ unset FTP_PASSWORD
# restore stdout and stderr to their original values # restore stdout and stderr to their original values
# and close the other fd # and close the other fd
exec 1>&4 2>&6 3>&- 4>&- 5>&- 6>&- exec 1>&6 2>&7 3>&- 4>&- 5>&- 6>&- 7>&-
# vim: set tabstop=2 shiftwidth=2 sts=2 autoindent smartindent: # vim: set tabstop=2 shiftwidth=2 sts=2 autoindent smartindent: