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Full Discussion: question in shell script
Homework and Emergencies Homework & Coursework Questions question in shell script Post 302550935 by abood1190 on Monday 29th of August 2011 01:03:04 AM
Old 08-29-2011
question in shell script

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!

1. The problem statement, all variables and given/known data:


Write a Bourne shell script which:
• Has one command line argument.
• If the command line argument is a directory then the script should output the number of files in the directory.
• If the command line argument is an ordinary file then the script should output whether or not the file has execute permission for the file owner.
• If the command line argument is neither a file or directory then the script should output an appropriate error message.
• If no command line argument is supplied then the script should output an appropriate error message.

2. Relevant commands, code, scripts, algorithms:



3. The attempts at a solution (include all code and scripts):



4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):

Curtin university, sedney, Australia, 101.

Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
 

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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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