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Top Forums Shell Programming and Scripting Getting file count in a variable Post 302903353 by swasid on Tuesday 27th of May 2014 05:16:30 AM
Old 05-27-2014
I am using Korn Shell and running this on AIX 5.3. The files are under /temp (created for the purpose of testing) itself
 

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slack(8)						      System Manager's Manual							  slack(8)

NAME
slack - Sysadmin's lazy autoconfiguration kit SYNOPSIS
slack [option ...] [role ...] DESCRIPTION
slack is a master command which coordinates the activities of its backends, which variously: o determine the list of roles to be installed on this server o create a local cached copy of the role files from the central repository o merge file trees from subroles into a single, unified tree o install files onto the local filesystem o run scripts before and after installation Options you give to slack will be generally passed along to the backends where relevant. OPTIONS
-h, --help Print a usage statement. --version Print the version and exit. -v, --verbose Increase verbosity. Can be specified multiple times. --quiet Don't be verbose (Overrides previous uses of --verbose). -C, --config FILE Use the specfied FILE for configuration instead of the default, /etc/slack.conf. -s, --source DIR Source directory for slack files -e, --rsh COMMAND Remote shell for rsync -c, --cache DIR Local cache directory for slack files -t, --stage DIR Local staging directory for slack files -r, --root DIR Root destination for slack files --no-sync Skip the slack-sync step (useful if you're pushing stuff into the CACHE outside slack). --no-files Don't install any files in ROOT, but tell rsync to print what it would do. --no-scripts Don't run scripts -n, --dry-run Same as --no-files --no-scripts (CACHE, STAGE will still be updated) --role-list Role list for slack-getroles(8). -b, --backup Make backups of existing files in ROOT that are overwritten. This option defaults to on if it is not set to 0 in a config file or disabled with --nobackup on the command line. --backup-dir Put backups from the --backup option into this directory. -H, --hostname HOST Pretend to be running on HOST, instead of the name given by gethostname(2). --preview MODE Do a diff of scripts and files before running them. MODE can be one of 'simple' or 'prompt' (See PREVIEW MODES, below). --diff PROG Use this diff program for previews. --sleep TIME Randomly sleep between 1 and TIME seconds before starting operations. Useful in crontabs. PREVIEW MODES
Preview functionality is new in slack 0.14.0. I haven't quite worked out how things will work, so this usage is somewhat subject to change in future versions. I thought I would try it this way and see how people like it. In 'simple' mode, after syncing and staging the files directory, slack will present a diff of the files and scripts. In this mode, slack will not run the preinstall or fixfiles scripts, and because of this, it may provide some false output about permissions changes to files. In 'prompt' mode, after syncing and staging the files directory, slack will diff the script directory. If there are differences, slack will present them to you and ask you if you want to continue. If you say no, it will exit. If you say yes, it will stage the scripts directory, run the preinstall and fixfiles scripts, and then diff the files in the stage with those in the root. If there are differences, slack will present them to you and ask you if you want to continue. If you say no, it will exit. If you say yes, it will install the files and run the postinstall script. So, the 'simple' mode is easy to use, and will be accurate if you don't use fixfiles. The 'prompt' mode will be accurate if you use fix- files, but requires some interaction. Why can't we just have one mode that works with fixfiles and requires no interaction? Well, that would require slack to understand what your free-form fixfiles executable was going to do, which would either require some kind of universe simulator or would require you to write your fixfiles in a less free-form way, which would make slack less like slack. EXAMPLES
To install all the roles configured in the role list for a server: slack To install a specific role: slack rolename To test a new role before checking in the changes: slack --source user@workstation:/home/user/.../slack rolename To avoid killing your master server when calling from cron: slack --sleep 3600 FILES
/etc/slack.conf SEE ALSO
slack.conf(5), rsync(1) Administrative commands 2004-10-22 slack(8)
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