Merge pull request #7 from darko-poljak/improve-logging
Improve logging: stdout, file, syslog options.
This commit is contained in:
Darko Poljak
GitHub
commit
12b6b2cf28
4 changed files with 166 additions and 36 deletions
121
ccollect
121
ccollect
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@ -127,6 +127,11 @@ fi
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PARALLEL=""
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MAX_JOBS=""
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USE_ALL=""
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LOGFILE=""
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SYSLOG=""
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# e - only errors, a - all output
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LOGLEVEL="a"
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LOGONLYERRORS=""
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#
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# catch signals
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@ -138,18 +143,11 @@ trap "${TRAPFUNC}" 1 2 15
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# Functions
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#
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# time displaying echo
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_techo()
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# check if we are running interactive or non-interactive
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# see: http://www.tldp.org/LDP/abs/html/intandnonint.html
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_is_interactive()
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{
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echo "$(${DDATE}): $@"
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}
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# exit on error
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_exit_err()
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{
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_techo "Error: $@"
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rm -f "${TMP}"
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exit 1
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[ -t 0 -o -p /dev/stdin ]
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}
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add_name()
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@ -194,9 +192,12 @@ ${__myname}: [args] <interval name> <sources to backup>
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-h, --help: Show this help screen
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-a, --all: Backup all sources specified in ${CSOURCES}
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-e, --errors: Log only errors
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-j [max], --jobs [max] Specifies the number of jobs to run simultaneously.
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If max is not specified then parallelise all jobs.
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-l FILE, --logfile FILE Log to specified file
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-p, --parallel: Parallelise backup processes (deprecated from 2.0)
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-s, --syslog: Log to syslog with tag ccollect
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-v, --verbose: Be very verbose (uses set -x)
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-V, --version: Print version information
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@ -219,6 +220,54 @@ unlock()
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"${unlockf}" "$@"
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}
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# time displaying echo
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# stdout version
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_techo_stdout()
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{
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echo "$(${DDATE}): $@"
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}
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# syslog version
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_techo_syslog()
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{
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logger -t ccollect "$@"
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}
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# specified file version
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_techo_file()
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{
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_techo_stdout "$@" >> "${LOGFILE}"
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}
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# determine _techo version before parsing options
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if _is_interactive
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then
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_techof="_techo_stdout"
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else
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_techof="_techo_syslog"
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fi
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# _techo with determined _techo version
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_techo()
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{
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if [ "${LOGLEVEL}" = "a" ]
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then
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"${_techof}" "$@"
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fi
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}
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_techo_err()
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{
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_techo "Error: $@"
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}
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_exit_err()
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{
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_techo_err "$@"
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rm -f "${TMP}"
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exit 1
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}
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#
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# Parse options
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#
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@ -247,6 +296,28 @@ while [ "$#" -ge 1 ]; do
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esac
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fi
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;;
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-e|--errors)
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LOGONLYERRORS="1"
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;;
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-l|--logfile)
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if [ "$#" -ge 2 ]
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then
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case "$2" in
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-*)
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_exit_err "Missing log file"
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;;
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*)
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LOGFILE="$2"
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shift
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;;
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esac
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else
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_exit_err "Missing log file"
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fi
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;;
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-s|--syslog)
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SYSLOG="1"
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;;
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-v|--verbose)
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set -x
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;;
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@ -268,6 +339,34 @@ while [ "$#" -ge 1 ]; do
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shift
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done
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# determine _techo version and logging level after parsing options
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if [ "${LOGFILE}" ]
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then
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_techof="_techo_file"
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LOGLEVEL="a"
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elif _is_interactive
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then
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if [ "${SYSLOG}" ]
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then
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_techof="_techo_syslog"
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LOGLEVEL="a"
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else
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_techof="_techo_stdout"
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LOGLEVEL="e"
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fi
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else
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_techof="_techo_syslog"
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LOGLEVEL="a"
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fi
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if [ "${LOGFILE}" -o "${SYSLOG}" ]
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then
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if [ "${LOGONLYERRORS}" ]
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then
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LOGLEVEL="e"
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fi
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fi
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# check that MAX_JOBS is natural number > 0
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# empty string means run all in parallel
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echo "${MAX_JOBS}" | grep -q -E '^[1-9][0-9]*$|^$'
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16
doc/changes/2.0
Normal file
16
doc/changes/2.0
Normal file
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@ -0,0 +1,16 @@
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* Introduce -j option for max parallel jobs, deprecate -p (Darko Poljak)
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* Add locking (Darko Poljak)
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* Fix source-is-up check (Nikita Koshikov)
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* Fix some minor command line parsing issues (Nico Schottelius)
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* Correct output, if configuration is not in cconfig format (Nico Schottelius)
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* Minor code cleanups and optimisations (Nico Schottelius)
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* ccollect_analyse_logs.sh traps more errors and warnings (Patrick Drolet)
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* Remove -v for mkdir and rm, as they are not POSIX (Patrick Drolet)
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* Export destination_* to source specific post_exec (Nico Schottelius)
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* Update documentation regarding exported variables (Nico Schottelius)
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* Simplify time calculation (Nico Schottelius)
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* Documentate pre_exec error handling (Nico Schottelius)
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* Added start script (Thorsten Elle)
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* Documentate autofs hint (Nico Schottelius)
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* Speedup source-is-up check and remove --archive (Nico Schottelius)
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* Removed support for remote backup (see doc) (Nico Schottelius)
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@ -1,16 +1 @@
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* Introduce -j option for max parallel jobs, deprecate -p (Darko Poljak)
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* Add locking (Darko Poljak)
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* Fix source-is-up check (Nikita Koshikov)
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* Fix some minor command line parsing issues (Nico Schottelius)
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* Correct output, if configuration is not in cconfig format (Nico Schottelius)
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* Minor code cleanups and optimisations (Nico Schottelius)
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* ccollect_analyse_logs.sh traps more errors and warnings (Patrick Drolet)
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* Remove -v for mkdir and rm, as they are not POSIX (Patrick Drolet)
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* Export destination_* to source specific post_exec (Nico Schottelius)
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* Update documentation regarding exported variables (Nico Schottelius)
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* Simplify time calculation (Nico Schottelius)
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* Documentate pre_exec error handling (Nico Schottelius)
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* Added start script (Thorsten Elle)
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* Documentate autofs hint (Nico Schottelius)
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* Speedup source-is-up check and remove --archive (Nico Schottelius)
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* Removed support for remote backup (see doc) (Nico Schottelius)
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* Add options for stdout, file and syslog logging (Darko Poljak)
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@ -29,6 +29,9 @@ OPTIONS
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-a, --all::
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Backup all sources specified in /etc/ccollect/sources
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-e, --errors::
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Log only errors
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-h, --help::
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Show the help screen
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@ -36,14 +39,41 @@ OPTIONS
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Specifies the number of jobs to run simultaneously.
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If max is not specified then parallelise all jobs.
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-l FILE, --logfile FILE::
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Log to specified file
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-p, --parallel::
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Parallelise backup processes (deprecated from 2.0)
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-s, --syslog::
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Log to syslog with tag ccollect
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-V, --version::
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Show version and exit
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-v, --verbose::
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Be very verbose (uses set -x)
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-V, --version::
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Show version and exit
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LOGGING MECHANISM
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-----------------
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ccollect logging depends on running in non-interactive/interactive mode
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and on specified optins. The mechanism behaves as the following:
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non-interactive mode::
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* standard output goes to syslog
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* optional: specify logging into file
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* log all output by default
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* optional: log only errors
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interactive mode::
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* standard output goes to stdout
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* log only errors
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* optional: log into syslog or file
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- log all output by default
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- optional: log only errors
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SEE ALSO
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