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Full Discussion: [Solved] Finger command
Top Forums UNIX for Dummies Questions & Answers [Solved] Finger command Post 302888704 by Don Cragun on Monday 17th of February 2014 12:56:58 AM
Old 02-17-2014
If you use finger userid |grep On Since you're likely to get a diagnostic message like:
Code:
grep: Since: No such file or directory

And since your output shows that the output from the lines you're trying to match doesn't have Since capitalized, even if you had quoted it correctly you still wouldn't get any output. Perhaps you meant:
Code:
finger <userid> | grep 'On since'

which could give you several lines of output for the specified user.

If someone's last login time was more than six months ago, why does it matter what time of day it was for a report like this?

For someone still logged in, unless you are keeping systems up for more than a year and a half without rebooting, the year should be obvious as long as the date the report was generated is included in the report.
 

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LEARN ABOUT PHP

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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