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Top Forums Shell Programming and Scripting Flag Programs that have coding problems Post 302973836 by Don Cragun on Sunday 22nd of May 2016 11:05:07 PM
Old 05-23-2016
I'm trying to figure out what some of your code is trying to do. Can you please answer the following questions:

1. Will the user running this script have read access to files matching the pattern /home/user/myfiles/*/*/*.log.*? If yes, why are you wasting time making copies of these files? If not, why are you copying these files into a directory and changing their access permissions such that every user with access to your system will be able to read this (presumably private) data?

2. Why does anyone need write or execute permission to the log files you are copying while this script is running?

3. What exactly are you trying to do with the command?:
Code:
chmod 775 files =/tmp/log/*.*

What it does do is change the permissions of a file named files and of all files in the directory located in the current working directory named =/tmp/log whose names in that directory contain the string .log. so that any process running with the user ID of the file's owner or with a group ID matching the file's group will have read, write, and execute permissions and all other processes will be able to read and execute them.
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SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-adfpqr] [-c command] [file] DESCRIPTION
script makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript. Option: -a Append the output to file or typescript, retaining the prior contents. -c command Run the named command instead of the shell. Useful for capturing the output of a program that behaves differently when associated with a tty. -d When playing back a session with the -p flag, don't sleep between records when playing back a timestamped session. -f Flush output after each write. This is useful for watching the script output in real time. -p Play back a session recorded with the -r flag in real time. -q Be quiet, and don't output started and ended lines. -r Record a session with input, output, and timestamping. The script ends when the forked shell exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. script works best with commands that do not manipulate the screen, the results are meant to emulate a hardcopy terminal. ENVIRONMENT
The following environment variable is used by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism). HISTORY
The script command appeared in 3.0BSD. BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. BSD
October 17, 2009 BSD
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