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#2 (permalink)

08-28-2008

era

Herder of Useless Cats (On Sabbatical)

Join Date: Mar 2008

Location: /there/is/only/bin/sh

Posts: 3,652

Your command means OHOME=echo and while that assignment is in place, run the command $OHOME which of course is not a valid command.

To capture the output of a command, put it in backticks (ASCII 96, not regular straight quotes):

Code:

O_BASE=`echo $OHOME | awk -F"/" '{for(i=2;i<=NF;i++) {if($i=="product"){exit;} a=a"/"$i; }} '`

$OHOME should properly be in double quotes, learn that now and you will get fewer surprises later (although in this case it doesn't really make a difference).

If your shell allows $(...) instead of backticks `...` that is perhaps more readable, although nominally less portable to legacy Bourne shell.

Your awk script doesn't appear to do anything with the a part, if you mean to capture it, you need to print it.

To strip off everything after the first occurrence of /product/ you can use the shell's variable substitution mechanism:

Code:

O_BASE=${OHOME%/product/*}

(Your awk script skips the first component /aaa, is that intentional? You can remove that with another variable substitution, O_BASE=${O_BASE#/aaa})

Last edited by era; 08-28-2008 at 03:56 PM.. Reason: Variable substitution remarks