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Full Discussion: OS errors/missing commands
Operating Systems Linux OS errors/missing commands Post 302145154 by wcmmlynn on Tuesday 13th of November 2007 02:49:06 AM
Old 11-13-2007
OS errors/missing commands
Hi all, .... I have major errors on entering the shell. On login I get:

-bash: dircolors: command not found
-bash: tr: command not found
-bash: fgrep: command not found
-bash: grep: command not found
-bash: grep: command not found
-bash: id: command not found
-bash: [: =: unary operator expected
-bash: whoami: command not found
-bash: grep: command not found
-bash: mesg: command not found
-bash: dircolors: command not found
-bash: who: command not found
-bash: cut: command not found
-bash: cut: command not found
-bash: hostname: command not found
-bash: mail: command not found
-bash: date: command not found
-bash: who: command not found
-bash: hostname: command not found
-bash: date: command not found
-bash: who: command not found
-bash: hostname: command not found
-bash: date: command not found
-bash: who: command not found
-bash: cut: command not found
-bash: cut: command not found
-bash: who: command not found
-bash: mail: command not found
-bash: hostname: command not found
-bash: date: command not found
-bash: who: command not found


Using Centos 4.5 on a dual Xeon server with WHM/CP and a few rpm's.

This happened after installing Flash Media Server which has been removed.

Many crucial unix commands are not functioning. Can't even use ping or mkdir, etc.

Any thoughts? Can I avoid an OS restore?


root@host [/bin]#
root@host [/bin]# pwd
/bin
root@host [/bin]# echo #path

root@host [/bin]# cd /
root@host [/]# echo /bin/*
/bin/arch /bin/ash /bin/ash.static /bin/awk /bin/basename /bin/bash /bin/bsh /bin/cat /bin/chgrp /bin/chmod /bin/chown /bin/cp /bin/cpio /bin/csh /bin/cut /bin/date /bin/dd /bin/df /bin/dmesg /bin/dnsdomainname /bin/doexec /bin/domainname /bin/dumpkeys /bin/echo /bin/ed /bin/egrep /bin/env /bin/ex /bin/false /bin/fgrep /bin/gawk /bin/gettext /bin/grep /bin/gtar /bin/gunzip /bin/gzip /bin/hostname /bin/igawk /bin/ipcalc /bin/kbd_mode /bin/kill /bin/ksh /bin/link /bin/ln /bin/loadkeys /bin/login /bin/ls /bin/mail /bin/mailx /bin/mkdir /bin/mknod /bin/mktemp /bin/more /bin/mount /bin/mt /bin/mv /bin/netstat /bin/nice /bin/nisdomainname /bin/passwd /bin/pgawk /bin/ping /bin/ping6 /bin/ps /bin/pwd /bin/red /bin/rm /bin/rmdir /bin/rpm /bin/rvi /bin/rview /bin/sed /bin/setfont /bin/setserial /bin/sh /bin/sleep /bin/sort /bin/stty /bin/su /bin/sum /bin/sync /bin/tar /bin/tcsh /bin/touch /bin/tracepath /bin/tracepath6 /bin/traceroute /bin/traceroute6 /bin/true /bin/umount /bin/uname /bin/unicode_start /bin/unicode_stop /bin/unlink /bin/usleep /bin/vi /bin/view /bin/ypdomainname /bin/zcat
root@host [/]# echo /usr/bin*
/usr/bin
root@host [/]#
 

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LEARN ABOUT LINUX

bzexe

BZEXE(1)						      General Commands Manual							  BZEXE(1)

NAME

       bzexe - compress executable files in place

SYNOPSIS

       bzexe [ name ...  ]

DESCRIPTION

       The  bzexe  utility  allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a
       penalty in performance).  For example if you execute ``bzexe /bin/cat'' it will create the following two files:
	   -r-xr-xr-x  1 root  bin   9644 Feb 11 11:16 /bin/cat
	   -r-xr-xr-x  1 bin   bin  24576 Nov 23 13:21 /bin/cat~
       /bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file.  You can remove /bin/cat~ once  you  are	sure  that
       /bin/cat works properly.

       This utility is most useful on systems with very small disks.

OPTIONS

       -d     Decompress the given executables instead of compressing them.

SEE ALSO

       bzip2(1), znew(1), zmore(1), zcmp(1), zforce(1)

CAVEATS

       The  compressed	executable  is a shell script. This may create some security holes. In particular, the compressed executable relies on the
       PATH environment variable to find gzip and some other utilities (tail, chmod, ln, sleep).

BUGS

       bzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually  in  some  cases,
       using chmod or chown.

																	  BZEXE(1)
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