Gentoo Archives: gentoo-user

From: Alex Schuster <wonko@×××××××××.org>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Quick script request
Date: Wed, 25 Jun 2008 17:25:33
Message-Id: 200806251925.24295.wonko@wonkology.org
In Reply to: Re: [gentoo-user] Quick script request by Grant
1 Grant asks:
2
3 > >> > cd dir1
4 > >> > for i in *jpg
5 > >> > do
6 > >> > j = basename $i .jpg
7 > >> > cp -u ${j}.jpg dir2/${j}_original.jpg
8 > >> > done
9 > >> >
10 > >> > 'cp -u' works around the messy problem of checking if the
11 > >> > destination file exists
12 [...]
13 > I put the above script in a file, added the appropriate header, issued
14 > chmod, and when I execute with ./file I get a bunch of these:
15 >
16 > ./script: line 6: j: command not found
17 > cp: cannot stat `.jpg': No such file or directory
18
19 This:
20 j = basename $i .jpg
21 should be more like this:
22 j=$( basename $i .jpg )
23
24 Or: j=${i%.jpg}
25
26 That is, there must be no whitespace around the '='. And in order to set j
27 to the result of a command, use $( command ) or ` command `.
28
29 Wonko
30 --
31 gentoo-user@l.g.o mailing list

Replies

Subject Author
Re: [gentoo-user] Quick script request Grant <emailgrant@×××××.com>