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Top Forums Shell Programming and Scripting how to find the value of a variable in zsh? Post 302523852 by cmp260 on Friday 20th of May 2011 03:41:35 AM
Old 05-20-2011
another question on zsh script

thats great, thanks.
I am also unsure what the first line of the script does, can you tell me?

while [ "$#" -gt 0 ]

I know it basicy means while -while greater than zero- but what does the first part "$# do?

thanks
cmp
 

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ZDIFF(1)						      General Commands Manual							  ZDIFF(1)

NAME
zcmp, zdiff - compare compressed files SYNOPSIS
zcmp [ cmp_options ] file1 [ file2 ] zdiff [ diff_options ] file1 [ file2 ] DESCRIPTION
Zcmp and zdiff are used to invoke the cmp or the diff program on files compressed via gzip. All options specified are passed directly to cmp or diff. If only file1 is specified, it is compared to the uncompressed contents of file1.gz. If two files are specified, their con- tents (uncompressed if necessary) are fed to cmp or diff. The input files are not modified. The exit status from cmp or diff is pre- served. SEE ALSO
cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1), gzip(1), gzexe(1) BUGS
Messages from the cmp or diff programs may refer to file names such as "-" instead of to the file names specified. ZDIFF(1)
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