Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

expr(1) [centos man page]

EXPR(1) 							   User Commands							   EXPR(1)

NAME
expr - evaluate expressions SYNOPSIS
expr EXPRESSION expr OPTION DESCRIPTION
--help display this help and exit --version output version information and exit Print the value of EXPRESSION to standard output. A blank line below separates increasing precedence groups. EXPRESSION may be: ARG1 | ARG2 ARG1 if it is neither null nor 0, otherwise ARG2 ARG1 & ARG2 ARG1 if neither argument is null or 0, otherwise 0 ARG1 < ARG2 ARG1 is less than ARG2 ARG1 <= ARG2 ARG1 is less than or equal to ARG2 ARG1 = ARG2 ARG1 is equal to ARG2 ARG1 != ARG2 ARG1 is unequal to ARG2 ARG1 >= ARG2 ARG1 is greater than or equal to ARG2 ARG1 > ARG2 ARG1 is greater than ARG2 ARG1 + ARG2 arithmetic sum of ARG1 and ARG2 ARG1 - ARG2 arithmetic difference of ARG1 and ARG2 ARG1 * ARG2 arithmetic product of ARG1 and ARG2 ARG1 / ARG2 arithmetic quotient of ARG1 divided by ARG2 ARG1 % ARG2 arithmetic remainder of ARG1 divided by ARG2 STRING : REGEXP anchored pattern match of REGEXP in STRING match STRING REGEXP same as STRING : REGEXP substr STRING POS LENGTH substring of STRING, POS counted from 1 index STRING CHARS index in STRING where any CHARS is found, or 0 length STRING length of STRING + TOKEN interpret TOKEN as a string, even if it is a keyword like 'match' or an operator like '/' ( EXPRESSION ) value of EXPRESSION Beware that many operators need to be escaped or quoted for shells. Comparisons are arithmetic if both ARGs are numbers, else lexicograph- ical. Pattern matches return the string matched between ( and ) or null; if ( and ) are not used, they return the number of characters matched or 0. Exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null or 0, 2 if EXPRESSION is syntactically invalid, and 3 if an error occurred. GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report expr translation bugs to <http://translationproject.org/team/> AUTHOR
Written by Mike Parker, James Youngman, and Paul Eggert. COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
The full documentation for expr is maintained as a Texinfo manual. If the info and expr programs are properly installed at your site, the command info coreutils 'expr invocation' should give you access to the complete manual. GNU coreutils 8.22 June 2014 EXPR(1)

Check Out this Related Man Page

bcfg2-reports(8)					      System Manager's Manual						  bcfg2-reports(8)

NAME
bcfg2-reports - Query reporting system for client status SYNOPSIS
bcfg2-reports [-v] DESCRIPTION
bcfg2-reports allows you to retrieve data from the database about clients, and the states of their current interactions. It also allows you to change the expired/unexpired states. The utility runs as a standalone application. It does, however, use the models from /src/lib/Server/Reports/reports/models.py. OPTIONS
-a Shows all hosts, including expired hosts. -b NAME Single-host mode - shows bad entries from the current interaction of NAME. NAME is the name of the entry. -c Shows only clean hosts. -d Shows only dirty hosts. -e NAME Single host mode - shows extra entries from the current interaction of NAME. NAME is the name of the entry. -h Shows help and usage info about bcfg2-reports. -m NAME Single-host mode - shows modified entries from the current interaction of NAME. NAME is the name of the entry. -s NAME Single host mode - shows bad, modified, and extra entries from the current interaction of NAME. NAME is the name of the entry. -x NAME Toggles expired/unexpired state of NAME. NAME is the name of the entry. --badentry=KIND,NAME Shows only hosts whose current interaction has bad entries in of KIND kind and NAME name; if a single argument ARG1 is given, then KIND,NAME pairs will be read from a file of name ARG1. KIND is the type of entry (Package, Path, Service, etc). NAME is the name of the entry. --extraentry=KIND,NAME Shows only hosts whose current interaction has extra entries in of KIND kind and NAME name; if a single argument ARG1 is given, then KIND,NAME pairs will be read from a file of name ARG1. KIND is the type of entry (Package, Path, Service, etc). NAME is the name of the entry. --fields=ARG1,ARG2,... Only displays the fields ARG1,ARG2,... (name, time, state, total, good, bad) --modifiedentry=KIND,NAME Shows only hosts whose current interaction has modified entries in of KIND kind and NAME name; if a single argument ARG1 is given, then KIND,NAME pairs will be read from a file of name ARG1. KIND is the type of entry (Package, Path, Service, etc). NAME is the name of the entry. --sort=ARG1,ARG2,... Sorts output on ARG1,ARG2,... (name, time, state, total, good, bad) --stale Shows hosts which haven't run in the last 24 hours SEE ALSO
bcfg2(1), bcfg2-server(8) BUGS
None currently known bcfg2-reports(8)
Man Page

Featured Tech Videos