чуть не убила этим мозг...-__-
осторожно - очень длинно
[melnikova@c310-8 inner]$ pwd /
/home/melnikova/inner
[melnikova@c310-8 inner]$ col melnikova
usage: col [-bfpx] [-l nline]
[melnikova@c310-8 inner]$ col [melnikova]
usage: col [-bfpx] [-l nline]
[melnikova@c310-8 inner]$ la -a
bash: la: command not found
[melnikova@c310-8 inner]$ ls -a
. ..
[melnikova@c310-8 inner]$ vi catfile.txt
[1]+ Stopped vim catfile.txt
[melnikova@c310-8 inner]$ mkdir forwork
[melnikova@c310-8 inner]$ col forwork
usage: col [-bfpx] [-l nline]
[melnikova@c310-8 inner]$ ./task.sh&
[2] 4914
[melnikova@c310-8 inner]$ bash: ./task.sh: No such file or directory
[2]- Exit 127 ./task.sh
[melnikova@c310-8 inner]$ cd /..
[melnikova@c310-8 /]$ ./task.sh&
[2] 4921
[melnikova@c310-8 /]$ bash: ./task.sh: No such file or directory
./rabota.sh&
[3] 4926
[2] Exit 127 ./task.sh
[melnikova@c310-8 /]$ bash: ./rabota.sh: No such file or directory
[3]- Exit 127 ./rabota.sh
[melnikova@c310-8 /]$ ls /dev
arpd fd0h1440 fd0u1840 log md13 md31 port ram9 shm tap7 tty22 tty40 tty59 ttyS19 ttyS37 ttyS55 vcs1
audio fd0H1440 fd0u1920 loop0 md14 md4 ppp ramdisk skip tap8 tty23 tty41 tty6 ttyS2 ttyS38 ttyS56 vcs2
cdrom fd0h1476 fd0u2880 loop1 md15 md5 ptmx random snd tap9 tty24 tty42 tty60 ttyS20 ttyS39 ttyS57 vcs3
cdwriter fd0h1494 fd0u3200 loop2 md16 md6 pts rawctl stderr tcpdiag tty25 tty43 tty61 ttyS21 ttyS4 ttyS58 vcs4
console fd0h1660 fd0u3520 loop3 md17 md7 ram root stdin tty tty26 tty44 tty62 ttyS22 ttyS40 ttyS59 vcs5
core fd0h360 fd0u360 loop4 md18 md8 ram0 route stdout tty0 tty27 tty45 tty63 ttyS23 ttyS41 ttyS6 vcs6
disk fd0H360 fd0u3840 loop5 md19 md9 ram1 route6 systty tty1 tty28 tty46 tty7 ttyS24 ttyS42 ttyS60 vcs7
dnrtmsg fd0h410 fd0u720 loop6 md2 mem ram10 rtc tap0 tty10 tty29 tty47 tty8 ttyS25 ttyS43 ttyS61 vcs8
dsp fd0h420 fd0u800 loop7 md20 mice ram11 sda tap1 tty11 tty3 tty48 tty9 ttyS26 ttyS44 ttyS62 vcsa
dvd fd0h720 fd0u820 lp0 md21 mixer ram12 sda1 tap10 tty12 tty30 tty49 ttyS0 ttyS27 ttyS45 ttyS63 vcsa1
dvdwriter fd0H720 fd0u830 lp1 md22 mouse0 ram13 sda2 tap11 tty13 tty31 tty5 ttyS1 ttyS28 ttyS46 ttyS64 vcsa2
event0 fd0h880 floppy lp2 md23 net ram14 sda3 tap12 tty14 tty32 tty50 ttyS10 ttyS29 ttyS47 ttyS65 vcsa3
event1 fd0u1040 full lp3 md24 nflog ram15 sda4 tap13 tty15 tty33 tty51 ttyS11 ttyS3 ttyS48 ttyS66 vcsa4
fd fd0u1120 fwmonitor MAKEDEV md25 null ram2 sda5 tap14 tty16 tty34 tty52 ttyS12 ttyS30 ttyS49 ttyS67 vcsa5
fd0 fd0u1440 gpmctl mapper md26 nvidia0 ram3 sda6 tap15 tty17 tty35 tty53 ttyS13 ttyS31 ttyS5 ttyS7 vcsa6
fd0CompaQ fd0u1660 hda md0 md27 nvidiactl ram4 sda7 tap2 tty18 tty36 tty54 ttyS14 ttyS32 ttyS50 ttyS8 vcsa7
fd0d360 fd0u1680 initctl md1 md28 parport0 ram5 sda8 tap3 tty19 tty37 tty55 ttyS15 ttyS33 ttyS51 ttyS9 vcsa8
fd0D360 fd0u1722 input md10 md29 parport1 ram6 sda9 tap4 tty2 tty38 tty56 ttyS16 ttyS34 ttyS52 urandom xfrm
fd0D720 fd0u1743 ip6_fw md11 md3 parport2 ram7 sdb tap5 tty20 tty39 tty57 ttyS17 ttyS35 ttyS53 usersock XOR
fd0h1200 fd0u1760 kmsg md12 md30 parport3 ram8 sdb1 tap6 tty21 tty4 tty58 ttyS18 ttyS36 ttyS54 vcs zero
[melnikova@c310-8 /]$ ls /
bin boot dev etc home initrd lib lost+found media misc mnt opt proc root sbin selinux srv sys tftpboot tmp usr var
[melnikova@c310-8 /]$ ./task.sh&
[2] 4970
[melnikova@c310-8 /]$ bash: ./task.sh: No such file or directory
[2]- Exit 127 ./task.sh
[melnikova@c310-8 /]$ ls -a -l
total 184
drwxr-xr-x 24 root root 4096 Apr 11 12:57 .
drwxr-xr-x 24 root root 4096 Apr 11 12:57 ..
-rw-r--r-- 1 root root 0 Apr 11 12:57 .autofsck
drwxr-xr-x 2 root root 4096 Mar 14 14:23 bin
drwxr-xr-x 3 root root 4096 Feb 12 18:54 boot
drwxr-xr-x 9 root root 6860 Apr 11 13:04 dev
drwxr-xr-x 83 root root 12288 Apr 11 13:04 etc
drwxr-xr-x 3 root root 0 Apr 11 13:04 home
drwxr-xr-x 2 root root 4096 Feb 17 2005 initrd
drwxr-xr-x 11 root root 4096 Mar 14 14:20 lib
drwx------ 2 root root 16384 Feb 12 18:51 lost+found
drwxr-xr-x 2 root root 4096 Feb 17 2005 media
drwxr-xr-x 2 root root 4096 Aug 9 2006 misc
drwxr-xr-x 2 root root 4096 Feb 12 16:14 mnt
drwxr-xr-x 2 root root 4096 Feb 17 2005 opt
dr-xr-xr-x 119 root root 0 Apr 11 2007 proc
drwxr-x--- 14 root root 4096 Mar 13 13:30 root
drwxr-xr-x 2 root root 12288 Mar 14 14:24 sbin
drwxr-xr-x 2 root root 4096 Feb 12 18:51 selinux
drwxr-xr-x 2 root root 4096 Feb 17 2005 srv
drwxr-xr-x 9 root root 0 Apr 11 2007 sys
drwxr-xr-x 3 root root 4096 Feb 12 19:08 tftpboot
drwxrwxrwt 13 root root 4096 Apr 11 13:04 tmp
drwxr-xr-x 18 root root 4096 Feb 12 19:07 usr
drwxr-xr-x 24 root root 4096 Feb 12 19:08 var
[melnikova@c310-8 /]$ ls -al
total 184
drwxr-xr-x 24 root root 4096 Apr 11 12:57 .
drwxr-xr-x 24 root root 4096 Apr 11 12:57 ..
-rw-r--r-- 1 root root 0 Apr 11 12:57 .autofsck
drwxr-xr-x 2 root root 4096 Mar 14 14:23 bin
drwxr-xr-x 3 root root 4096 Feb 12 18:54 boot
drwxr-xr-x 9 root root 6860 Apr 11 13:04 dev
drwxr-xr-x 83 root root 12288 Apr 11 13:04 etc
drwxr-xr-x 3 root root 0 Apr 11 13:04 home
drwxr-xr-x 2 root root 4096 Feb 17 2005 initrd
drwxr-xr-x 11 root root 4096 Mar 14 14:20 lib
drwx------ 2 root root 16384 Feb 12 18:51 lost+found
drwxr-xr-x 2 root root 4096 Feb 17 2005 media
drwxr-xr-x 2 root root 4096 Aug 9 2006 misc
drwxr-xr-x 2 root root 4096 Feb 12 16:14 mnt
drwxr-xr-x 2 root root 4096 Feb 17 2005 opt
dr-xr-xr-x 119 root root 0 Apr 11 2007 proc
drwxr-x--- 14 root root 4096 Mar 13 13:30 root
drwxr-xr-x 2 root root 12288 Mar 14 14:24 sbin
drwxr-xr-x 2 root root 4096 Feb 12 18:51 selinux
drwxr-xr-x 2 root root 4096 Feb 17 2005 srv
drwxr-xr-x 9 root root 0 Apr 11 2007 sys
drwxr-xr-x 3 root root 4096 Feb 12 19:08 tftpboot
drwxrwxrwt 13 root root 4096 Apr 11 13:04 tmp
drwxr-xr-x 18 root root 4096 Feb 12 19:07 usr
drwxr-xr-x 24 root root 4096 Feb 12 19:08 var
[melnikova@c310-8 /]$ ls -a -l
total 184
drwxr-xr-x 24 root root 4096 Apr 11 12:57 .
drwxr-xr-x 24 root root 4096 Apr 11 12:57 ..
-rw-r--r-- 1 root root 0 Apr 11 12:57 .autofsck
drwxr-xr-x 2 root root 4096 Mar 14 14:23 bin
drwxr-xr-x 3 root root 4096 Feb 12 18:54 boot
drwxr-xr-x 9 root root 6860 Apr 11 13:04 dev
drwxr-xr-x 83 root root 12288 Apr 11 13:04 etc
drwxr-xr-x 3 root root 0 Apr 11 13:04 home
drwxr-xr-x 2 root root 4096 Feb 17 2005 initrd
drwxr-xr-x 11 root root 4096 Mar 14 14:20 lib
drwx------ 2 root root 16384 Feb 12 18:51 lost+found
drwxr-xr-x 2 root root 4096 Feb 17 2005 media
drwxr-xr-x 2 root root 4096 Aug 9 2006 misc
drwxr-xr-x 2 root root 4096 Feb 12 16:14 mnt
drwxr-xr-x 2 root root 4096 Feb 17 2005 opt
dr-xr-xr-x 118 root root 0 Apr 11 2007 proc
drwxr-x--- 14 root root 4096 Mar 13 13:30 root
drwxr-xr-x 2 root root 12288 Mar 14 14:24 sbin
drwxr-xr-x 2 root root 4096 Feb 12 18:51 selinux
drwxr-xr-x 2 root root 4096 Feb 17 2005 srv
drwxr-xr-x 9 root root 0 Apr 11 2007 sys
drwxr-xr-x 3 root root 4096 Feb 12 19:08 tftpboot
drwxrwxrwt 13 root root 4096 Apr 11 13:04 tmp
drwxr-xr-x 18 root root 4096 Feb 12 19:07 usr
drwxr-xr-x 24 root root 4096 Feb 12 19:08 var
[melnikova@c310-8 /]$ ls -l
total 168
drwxr-xr-x 2 root root 4096 Mar 14 14:23 bin
drwxr-xr-x 3 root root 4096 Feb 12 18:54 boot
drwxr-xr-x 9 root root 6860 Apr 11 13:04 dev
drwxr-xr-x 83 root root 12288 Apr 11 13:04 etc
drwxr-xr-x 3 root root 0 Apr 11 13:04 home
drwxr-xr-x 2 root root 4096 Feb 17 2005 initrd
drwxr-xr-x 11 root root 4096 Mar 14 14:20 lib
drwx------ 2 root root 16384 Feb 12 18:51 lost+found
drwxr-xr-x 2 root root 4096 Feb 17 2005 media
drwxr-xr-x 2 root root 4096 Aug 9 2006 misc
drwxr-xr-x 2 root root 4096 Feb 12 16:14 mnt
drwxr-xr-x 2 root root 4096 Feb 17 2005 opt
dr-xr-xr-x 118 root root 0 Apr 11 2007 proc
drwxr-x--- 14 root root 4096 Mar 13 13:30 root
drwxr-xr-x 2 root root 12288 Mar 14 14:24 sbin
drwxr-xr-x 2 root root 4096 Feb 12 18:51 selinux
drwxr-xr-x 2 root root 4096 Feb 17 2005 srv
drwxr-xr-x 9 root root 0 Apr 11 2007 sys
drwxr-xr-x 3 root root 4096 Feb 12 19:08 tftpboot
drwxrwxrwt 13 root root 4096 Apr 11 13:04 tmp
drwxr-xr-x 18 root root 4096 Feb 12 19:07 usr
drwxr-xr-x 24 root root 4096 Feb 12 19:08 var
[melnikova@c310-8 /]$ ./task.sh&
[2] 5004
[melnikova@c310-8 /]$ bash: ./task.sh: No such file or directory
[2]- Exit 127 ./task.sh
[melnikova@c310-8 /]$ pwd
/
[melnikova@c310-8 /]$ cd home
[melnikova@c310-8 home]$ pwd
/home
[melnikova@c310-8 home]$ ./task.sh&
[2] 5009
[melnikova@c310-8 home]$ bash: ./task.sh: No such file or directory
./task.sh&
[3] 5017
[2] Exit 127 ./task.sh
[melnikova@c310-8 home]$ bash: ./task.sh: No such file or directory
[3]- Exit 127 ./task.sh
[melnikova@c310-8 home]$ cd melnikova
[melnikova@c310-8 ~]$ ./task.sh&
[2] 5025
[melnikova@c310-8 ~]$ bash: ./task.sh: Permission denied
[2]- Exit 126 ./task.sh
[melnikova@c310-8 ~]$ ls -l
total 68
-rw-r--r-- 2 melnikova studs 30 Mar 21 14:06 catfile.txt
drwx------ 3 melnikova studs 4096 Mar 21 14:04 Desktop
-rw-r--r-- 2 melnikova studs 30 Mar 21 14:06 dogfile.txt
drwxr-xr-x 2 melnikova studs 4096 Mar 21 14:15 Files
-rw-r--r-- 1 melnikova studs 0 Mar 21 14:07 grrr_file
-rw-r--r-- 1 melnikova studs 0 Mar 21 14:08 grrr_file.txt
drwxr-xr-x 3 melnikova studs 4096 Apr 11 13:09 inner
lrwxrwxrwx 1 melnikova studs 11 Mar 21 14:28 ldogfile.txt -> catfile.txt
-rw-r--r-- 1 melnikova studs 153 Apr 11 13:11 rabota
-rw-r--r-- 1 melnikova studs 153 Apr 11 13:16 task.sh
[melnikova@c310-8 ~]$ chmod 755 .task.sh
chmod: cannot access `.task.sh': No such file or directory
[melnikova@c310-8 ~]$ chmod 750 task.sh
[melnikova@c310-8 ~]$ ls -l
total 68
-rw-r--r-- 2 melnikova studs 30 Mar 21 14:06 catfile.txt
drwx------ 3 melnikova studs 4096 Mar 21 14:04 Desktop
-rw-r--r-- 2 melnikova studs 30 Mar 21 14:06 dogfile.txt
drwxr-xr-x 2 melnikova studs 4096 Mar 21 14:15 Files
-rw-r--r-- 1 melnikova studs 0 Mar 21 14:07 grrr_file
-rw-r--r-- 1 melnikova studs 0 Mar 21 14:08 grrr_file.txt
drwxr-xr-x 3 melnikova studs 4096 Apr 11 13:09 inner
lrwxrwxrwx 1 melnikova studs 11 Mar 21 14:28 ldogfile.txt -> catfile.txt
-rw-r--r-- 1 melnikova studs 153 Apr 11 13:11 rabota
-rwxr-x--- 1 melnikova studs 153 Apr 11 13:16 task.sh
[melnikova@c310-8 ~]$ ps
PID TTY TIME CMD
4788 pts/2 00:00:00 bash
4831 pts/2 00:00:00 vim
5051 pts/2 00:00:00 ps
[melnikova@c310-8 ~]$ ./task.sh &
[2] 5054
[melnikova@c310-8 ~]$ ./task.sh: line 5: [: missing `]'
vi task.sh
[melnikova@c310-8 ~]$ ps
PID TTY TIME CMD
4788 pts/2 00:00:00 bash
4831 pts/2 00:00:00 vim
5054 pts/2 00:00:00 task.sh
5125 pts/2 00:00:00 sleep
5126 pts/2 00:00:00 ps
[melnikova@c310-8 ~]$ kill 5054
[melnikova@c310-8 ~]$ vi task.sh
[2]- Terminated ./task.sh
[melnikova@c310-8 ~]$ mkdir mytask
[melnikova@c310-8 ~]$ ls -l
total 100
drwxr-xr-x 2 melnikova studs 4096 Apr 11 13:33 A
drwxr-xr-x 2 melnikova studs 4096 Apr 11 13:33 B
drwxr-xr-x 2 melnikova studs 4096 Apr 11 13:34 C
-rw-r--r-- 2 melnikova studs 30 Mar 21 14:06 catfile.txt
drwx------ 3 melnikova studs 4096 Mar 21 14:04 Desktop
-rw-r--r-- 2 melnikova studs 30 Mar 21 14:06 dogfile.txt
drwxr-xr-x 2 melnikova studs 4096 Mar 21 14:15 Files
-rw-r--r-- 1 melnikova studs 0 Mar 21 14:07 grrr_file
-rw-r--r-- 1 melnikova studs 0 Mar 21 14:08 grrr_file.txt
drwxr-xr-x 3 melnikova studs 4096 Apr 11 13:09 inner
lrwxrwxrwx 1 melnikova studs 11 Mar 21 14:28 ldogfile.txt -> catfile.txt
drwxr-xr-x 2 melnikova studs 4096 Apr 11 13:40 mytask
-rw-r--r-- 1 melnikova studs 153 Apr 11 13:11 rabota
-rwxr-x--- 1 melnikova studs 154 Apr 11 13:35 task.sh
[melnikova@c310-8 ~]$ tar cf mytask.tar A B C
[melnikova@c310-8 ~]$ tar tf mytask.tar
A/
A/5
A/9
A/2
A/6
A/7
A/1
A/4
A/3
A/8
B/
B/5
B/9
B/2
B/6
B/7
B/1
B/4
B/3
B/8
C/
C/5
C/9
C/2
C/6
C/7
C/1
C/4
C/3
C/8
[melnikova@c310-8 ~]$ rm-rf mytask.tar
bash: rm-rf: command not found
[melnikova@c310-8 ~]$ rm-rf A B C
bash: rm-rf: command not found
[melnikova@c310-8 ~]$ rm-rf A
bash: rm-rf: command not found
[melnikova@c310-8 ~]$ rm -rf A B C
[melnikova@c310-8 ~]$ ls -lt
total 100
-rw-r--r-- 1 melnikova studs 20480 Apr 11 13:42 mytask.tar
drwxr-xr-x 2 melnikova studs 4096 Apr 11 13:40 mytask
-rwxr-x--- 1 melnikova studs 154 Apr 11 13:35 task.sh
-rw-r--r-- 1 melnikova studs 153 Apr 11 13:11 rabota
drwxr-xr-x 3 melnikova studs 4096 Apr 11 13:09 inner
lrwxrwxrwx 1 melnikova studs 11 Mar 21 14:28 ldogfile.txt -> catfile.txt
drwxr-xr-x 2 melnikova studs 4096 Mar 21 14:15 Files
-rw-r--r-- 1 melnikova studs 0 Mar 21 14:08 grrr_file.txt
-rw-r--r-- 1 melnikova studs 0 Mar 21 14:07 grrr_file
-rw-r--r-- 2 melnikova studs 30 Mar 21 14:06 catfile.txt
-rw-r--r-- 2 melnikova studs 30 Mar 21 14:06 dogfile.txt
drwx------ 3 melnikova studs 4096 Mar 21 14:04 Desktop
[melnikova@c310-8 ~]$ rm -rf mytask.tar
[melnikova@c310-8 ~]$ kill 5054
bash: kill: (5054) - No such process
[melnikova@c310-8 ~]$ ./task.sh &
[2] 5304
[melnikova@c310-8 ~]$ kill 5304
[melnikova@c310-8 ~]$ mkdir mytask
mkdir: cannot create directory `mytask': File exists
[2]- Terminated ./task.sh
[melnikova@c310-8 ~]$ tar cf mytask.tar A B C
tar: B: Cannot stat: No such file or directory
tar: C: Cannot stat: No such file or directory
tar: Error exit delayed from previous errors
[melnikova@c310-8 ~]$ tar tf mytask.tar
A/
A/2
A/1
A/3