JezK
Edit File: lpunlock
#!/bin/sh # -*- tcl -*- # The next line is executed by /bin/sh, but not tcl \ exec tclsh "$0" ${1+"$@"} package require Expect # This script unhangs a printer which claims it is "waiting for lock". # Written by Don Libes. Based on English instructions from Scott Paisley. # lpunlock figures out if the printer is on a server, and if so which, # by looking in the local printcap file. (You can override this by # supplying a server name as an additional argument.) It then rlogins # to the server, recreates the device and resets the queue via lpc. # assumes user has root privs on remote host via /.rhosts # assumes printer is name of device on remote system proc usage {} { send_user "usage: lpunlock <printer> \[<server>\]\n" send_user "example: lpunlock lw-isg durer\n" exit } if {$argc==0} usage set printer [lindex $argv 0] set client [exec hostname] if {$argc == 1} { # if no arg2, look in local printcap for info spawn ed /etc/printcap expect "\n" ;# discard character count send "/$printer/\r" for {} {1} {} { expect -re ".*:rm=(\[^:]*):.*\r\n" { set server $expect_out(1,string) break } "\r\n*\\\r\n" { ;# look at next line of entry send "\r" } "\r\n*\n" { ;# no more lines of entry - give up set server $client break } } } else { if {$argc == 2} { set server [lindex $argv 1] } else usage } set whoami [exec whoami] if {[string match $server $client] && [string match $whoami "root"]} { spawn csh expect "# " } else { # login to the print server as root. # Set timeout high because login is slow. set timeout 60 spawn rlogin $server -l root expect timeout exit \ eof exit \ "Password*" { send_user "\ncouldn't login to $server as root\n" exit } "1#*" set timeout 10 } # run lpc and 'stop printer' send lpc\r ; expect "lpc>*" send stop $printer\r ; expect "unknown*" exit \ "disabled*lpc>*" # exit lpc and cd /dev send quit\r ; expect "#*" send cd /dev\r ; expect "#*" # figure out major/minor device numbers send ls -l /dev/$printer\r ; expect timeout { send_user "\nbad device - couldn't get major/minor numbers\n"; exit } "crw*#*" scan $expect_out(buffer) "ls -l %*s %*s 1 root %d, %d" major minor # delete the lock and the printer device itself send rm /var/spool/$printer/lock /dev/$printer\r ; expect #* # recreate the printer device send mknod $printer c $major $minor\r ; expect #* # run lpc and 'start printer' send lpc\r ; expect lpc>* send start $printer\r ; expect started*lpc>* send quit\r ; expect #* # logout send exit\r ; expect eof send_user Printer unlocked and restarted.\n