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Full Discussion: variable assignment problem
Top Forums Shell Programming and Scripting variable assignment problem Post 302542234 by aishsimplesweet on Wednesday 27th of July 2011 04:43:23 AM
Old 07-27-2011
it is still giving error now on displaying the value


-bash-3.00$ abc=deepak
-bash-3.00$ a=1
-bash-3.00$ eval def_${a}=${abc}
-bash-3.00$ echo ${def_${a}}
-bash: ${def_${a}}: bad substitution

---------- Post updated at 03:43 AM ---------- Previous update was at 03:43 AM ----------

it is still giving error now on displaying the value


Code:
-bash-3.00$ abc=deepak
-bash-3.00$ a=1
-bash-3.00$ eval def_${a}=${abc}
-bash-3.00$ echo ${def_${a}}
-bash: ${def_${a}}: bad substitution

---------- Post updated at 03:43 AM ---------- Previous update was at 03:43 AM ----------

it is still giving error now on displaying the value


Code:
-bash-3.00$ abc=deepak
-bash-3.00$ a=1
-bash-3.00$ eval def_${a}=${abc}
-bash-3.00$ echo ${def_${a}}
-bash: ${def_${a}}: bad substitution

 

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LEARN ABOUT OSX

icecream

ICECREAM(1)							     icecream							       ICECREAM(1)

NAME

       icecream - download icecast and shoutcast streams, redirecting all fetched content to stdout and/or to disk at the same time

SYNOPSIS

       icecream [OPTIONS] URL [URL..]

DESCRIPTION

       icecream is a lightweight, non-interactive, stream download utility.  It connects to icecast and shoutcast servers or direct stream URLs,
       and redirects all fetched content to stdout and/or to media files on your disk.

       Listen to the stream piping the output to a stdin-capable media player.	Save the stream to a named file or split it into different tracks.
       It is possible to redirect the stream and save it to disk at the same time.

       icecream is able to parse pls and m3u playlists, and to download mp3 and ogg direct stream URLs. If the stream is anonymous it will be
       saved as 'stream-time.mp3', where time is actual timestamp.

OPTIONS

       -h, --help
	       Print a help message describing all options

       -q, --quiet
	       Turn off output

       -v, --verbose
	       Be verbose

       -t, --tracks
	       Split stream into tracks (if possible)

       --name=NAME
	       Save the stream to file specified by NAME. Format codes starting with "%" will be replaced. See the date command for valid format
	       codes.

       --stop=N[units]
	       Stop downloading the stream after N kb/mb/min/songs

       --user-agent=AGENT
	       Set user-agent header to AGENT

       --stdout
	       Output stream to stdout (implies -q)

       --sync  Turn syncing on, required for some mpeg players that read from stdin

       --debug Turn on debugging outputs

EXAMPLES

       Streaming to mpg123
	       icecream --stdout http://radio.com/playlist.pls | mpg123 -

       Split stream into different tracks
	       icecream -t http://metal.org/radio.pls

       Split stream into tracks and play with vlc at the same time
	       icecream -t --stdout http://streaming.com/playlist.pls | vlc file:/dev/stdin

       Prepare a 74 minute CD
	       icecream -t --stop 74min http://trace.net/playlist.m3u

       Use a filename with today's date as output
	       icecream -q --name 'radio_%Y_%m_%d' --stop 60min http://radio.com/playlist.pls

BUGS

       You are welcome to send bug reports about icecream to our mailing list.	Feel free to visit http://icecream.sourceforge.net

AUTHOR

       Written by Gil Megidish <gil at megidish.net>

1.3								    2008-04-28							       ICECREAM(1)
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