--- a/zgrep.1 2012-09-10 03:20:56.541637782 +0300 +++ b/zgrep.1 2012-09-10 03:18:21.000000000 +0300 @@ -11,7 +11,13 @@ zgrep \- search possibly compressed file invokes .I grep on compressed or gzipped files. -All options specified are passed directly to +These +.I grep +options will cause +.I zgrep +to terminate with an error code: +.BI (-[drRzZ] | --di* | --exc* | --inc* | --rec* | --nu*) . +All other options specified are passed directly to .IR grep . If no file is specified, then the standard input is decompressed if necessary and fed to grep. @@ -23,6 +29,8 @@ If the GREP environment variable is set, uses it as the .I grep program to be invoked. +.SH EXIT CODE +2 - An option that is not supported was specified. .SH AUTHOR Charles Levert (char...@comm.polymtl.ca) .SH "SEE ALSO"
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