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Operating Systems AIX How to spilt huge string in AIX ? Post 302402778 by bakunin on Wednesday 10th of March 2010 03:42:26 PM
Old 03-10-2010
Quote:
Originally Posted by funksen
you could also use read

Code:
echo $CMD_ARGS | read FOO WHATYOUWANT

echo $WHATYOUWANT[/code]
funksen is correct. Per default the shell uses whitespace as field separator. I learned scripting on an IBM mainframe using REXX so i still follow the (there customary) convention of naming throw-away variables "." which works in ksh too. Like this:

Code:
typeset content=""
echo "word1 word2 word3 word4" | read . . content .
print - "$content"

But this sounds like a problem to me:
Quote:
Originally Posted by ak835
I have a variable whose value is a very huge string ...(5000+ characters
As far as i remember the maximum line length for a ksh input line is a system constant and is IIRC 4096 or 8192 characters. If your string is more than 5k characters long a command with this string as argument will either already fail due to shell restrictions or at least be in danger of failing if the string grows over time. The error message will be something like "argument list too long" or something such. You might want to redesign the process which leads to such extraordinary long argument lists.

I hope this helps.

bakunin
 

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line(1) 						      General Commands Manual							   line(1)

NAME
line - Reads one line from standard input SYNOPSIS
line STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: line: XCU5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. OPTIONS
None DESCRIPTION
The line command copies one line, up to and including a newline, from standard input and writes it to standard output. Use this command within a shell command file to read from your terminal. The line command always writes at least a newline character. NOTES
The line utility has no internationalization features and is marked LEGACY in XCU Issue 5. Use the read utility instead. EXIT STATUS
Success. End-of-File. EXAMPLES
To read a line from the keyboard and append it to a file, enter: echo 'Enter comments for the log:' echo ': c' line >>log This shell procedure displays the message: Enter comments for the log: It then reads a line of text from the keyboard and adds it to the end of the file log. The echo ': c' command displays a : (colon) prompt. See the echo command for information about the c escape sequence. SEE ALSO
Commands: echo(1), ksh(1), read(1), Bourne shell sh(1b), POSIX shell sh(1p) Functions: read(2) Standards: standards(5) line(1)
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