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Top Forums Shell Programming and Scripting Script works fine until I | more Post 95452 by Perderabo on Wednesday 11th of January 2006 10:17:32 AM
Old 01-11-2006
The ls program will do stuff like this on most systems. Maybe AIX is an exception. But for me, "ls" and "ls | more" give different results. I am forced to do a "ls -C | more" to see the equivalent of "ls'. What is happening is that the ls program is looking at stdout and checking to see if it's a tty or not. If it is a tty, it defaults to -C. Any program can do that, but to do so is controversial to say the least. All I can suggest is to check the man page for your command and see if there is an option to give you the result you want. Possibly the program is innocent and it's the script that is doing this. To see the syntax, try these commands from a ksh prompt:
{ [ -t 1 ] && echo yes; }
{ [ -t 1 ] && echo yes; } | cat

The first should print "yes" but the second should print nothing. Check your script for stuff like that.
 

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SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-akq] [-t time] [file [command ...]] DESCRIPTION
The script utility 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. If the argument command is given, script will run the specified command with an optional argument vector instead of an interactive shell. The following options are available: -a Append the output to file or typescript, retaining the prior contents. -k Log keys sent to program as well as output. -q Run in quiet mode, omit the start and stop status messages. -t time Specify time interval between flushing script output file. A value of 0 causes script to flush for every character I/O event. The default interval is 30 seconds. The script ends when the forked shell (or command) 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. The script utility works best with commands that do not manipulate the screen. The results are meant to emulate a hardcopy terminal, not an addressable one. ENVIRONMENT
The following environment variable is utilized 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
The script utility places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. It is not possible to specify a command without also naming the script file because of argument parsing compatibility issues. When running in -k mode, echo cancelling is far from ideal. The slave terminal mode is checked for ECHO mode to check when to avoid manual echo logging. This does not work when in a raw mode where the program being run is doing manual echo. BSD
January 22, 2004 BSD
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