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Журнал лабораторных работ

Содержание

Журнал

Среда (03/29/17)

/dev/pts/0
13:41:34
#./shell.sh
Changing shell for user user:
Changing shell for user ivan:
Changing shell for user petr:
13:41:39
#finger ivan
Login: ivan                             Name:
Directory: /home/ivan                   Shell: /bin/
Last login Tue Mar 28 12:01 (EEST) on pts/2 from 192.168.16.191
No mail.
No Plan.
13:41:42
#./shell.sh bash
Changing shell for user user:
Changing shell for user ivan:
Changing shell for user petr:
13:41:47
#finger ivan
Login: ivan                             Name:
Directory: /home/ivan                   Shell: /bin/bash
Last login Tue Mar 28 12:01 (EEST) on pts/2 from 192.168.16.191
No mail.
No Plan.
13:41:50
#vi shell.sh 
--- /tmp/l3-saved-10765.23289.19043	2017-03-29 14:41:56.239481175 +0300
+++ shell.sh	2017-03-29 14:42:23.883479683 +0300
@@ -3,7 +3,7 @@
 users=`awk -F: '$3>=1000&&$3!=65534{print $1}' /etc/passwd | tr "\n" " " `
 for user in $users
       do
-	echo "Changing shell for user $user:"
+	echo "Changing shell for user $user..."
 	usermod -s /bin/$1 $user
       done
13:42:23
#vi shell.sh 
--- /tmp/l3-saved-10765.25788.9779	2017-03-29 14:43:35.751473034 +0300
+++ shell.sh	2017-03-29 14:45:00.411486004 +0300
@@ -4,6 +4,6 @@
 for user in $users
       do
 	echo "Changing shell for user $user..."
-	usermod -s /bin/$1 $user
+	usermod -s /bin/${1:-bash} $user
       done
13:45:00
#./shell.sh sh
Changing shell for user user...
Changing shell for user ivan...
Changing shell for user petr...
13:45:06
#./shell.sh
Changing shell for user user...
Changing shell for user ivan...
Changing shell for user petr...
13:45:10
#fin 
find       find2perl  findfs     findmnt    finger
13:45:10
#fin 
find       find2perl  findfs     findmnt    finger
13:45:10
#finger shell.sh
finger: shell.sh: no such user.
13:45:16
#finger ivan
Login: ivan                             Name:
Directory: /home/ivan                   Shell: /bin/bash
Last login Tue Mar 28 12:01 (EEST) on pts/2 from 192.168.16.191
No mail.
No Plan.
13:45:21
#finger ivan
Login: ivan                             Name:
Directory: /home/ivan                   Shell: /bin/bash
Last login Tue Mar 28 12:01 (EEST) on pts/2 from 192.168.16.191
No mail.
No Plan.
13:47:34
#vi shell.sh 
--- /tmp/l3-saved-10765.2404.8068	2017-03-29 14:48:06.291462879 +0300
+++ shell.sh	2017-03-29 14:50:41.719456336 +0300
@@ -1,5 +1,6 @@
 #!/bin/bash
 
+if 
 users=`awk -F: '$3>=1000&&$3!=65534{print $1}' /etc/passwd | tr "\n" " " `
 for user in $users
       do
13:50:41
#test 5 -eq 5










13:50:57




#echo $?


0











13:51:07




#test 5 -eq 6















13:51:14




#echo $?


1











13:51:15




#[ 5 -eq 5 ]












13:52:08




#echo $?


0











13:52:11




#vi shell.sh





--- /tmp/l3-saved-10765.9930.16574	2017-03-29 14:52:52.347506743 +0300
+++ shell.sh	2017-03-29 14:54:51.371522088 +0300
@@ -1,6 +1,9 @@
 #!/bin/bash
 
-if 
+if [ $# -gt 1 ]
+      rhen
+	exit 2
+      fi
 users=`awk -F: '$3>=1000&&$3!=65534{print $1}' /etc/passwd | tr "\n" " " `
 for user in $users
       do









13:54:51




#vi shell.sh













13:55:01




#~





./shell.sh: line 6: syntax error near unexpected token `fi'
./shell.sh: line 6: `      fi'











13:55:08




#vi shell.sh





--- /tmp/l3-saved-10765.4453.23	2017-03-29 14:55:20.727474670 +0300
+++ shell.sh	2017-03-29 14:55:34.707481111 +0300
@@ -3,7 +3,7 @@
 if [ $# -gt 1 ]
       rhen
 	exit 2
-      fi
+      fin
 users=`awk -F: '$3>=1000&&$3!=65534{print $1}' /etc/passwd | tr "\n" " " `
 for user in $users
       do









13:55:34




#./shell.sh





./shell.sh: line 14: ошибка синтаксиса: неожиданный конец файла











13:55:37




#vi shell.sh





--- /tmp/l3-saved-10765.30057.21047	2017-03-29 14:55:47.223467120 +0300
+++ shell.sh	2017-03-29 14:56:00.259524941 +0300
@@ -1,9 +1,9 @@
 #!/bin/bash
 
 if [ $# -gt 1 ]
-      rhen
+      then
 	exit 2
-      fin
+      fi
 users=`awk -F: '$3>=1000&&$3!=65534{print $1}' /etc/passwd | tr "\n" " " `
 for user in $users
       do









13:56:00




#./shell.sh


Changing shell for user user...
usermod: изменения не внесены
Changing shell for user ivan...
usermod: изменения не внесены
Changing shell for user petr...
usermod: изменения не внесены











13:56:01




#./shell.sh re


Changing shell for user user...
Changing shell for user ivan...
Changing shell for user petr...











13:56:14




#vi shell.sh













13:56:38




#~


[2]+  Stopped                 /usr/bin/vi "$@"











13:56:54




#rm .





rm: невозможно удалить «.»: Это каталог











13:57:13




#%1





l3script: fg: %1: не такой задачи











13:57:27




#jo





jobs  join











13:57:27




#jo





jobs  join











13:57:27




#jo





jobs  join











13:57:27




#jobs


[2]+  Stopped                 /usr/bin/vi "$@"











13:57:49




#%1





l3script: fg: %1: не такой задачи











13:57:52




#%2


~
~
~
~
~
~
~
~
~
~
...
~
~
~
~
~
~
~
                                                                               0,0-1        Весь
W11: Предупреждение: файл "shell.sh" был изменён после начала редактирования
См. дополнительную информацию в ":help W11".











13:58:15




#cd










прошло 37 минут




14:35:21




#cd /s





sbin/    selinux/ srv/     sys/











14:35:21




#cd ./scripts/












14:35:35




#vi proc.sh





--- /dev/null	2017-03-24 16:46:29.432000001 +0200
+++ proc.sh	2017-03-29 15:44:51.355466535 +0300
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+i=1
+
+while [ $1 -lt 1000000 ]
+   do
+	echo $i > /dev/ `who | awk '$1~/ivan/{print $2}'`
+	clear > /dev/ `who | awk '$1~/ivan/{print $2}'`
+	i=$[$1=1]
+   done









14:44:51




#chmod u+x proc.sh












14:45:02




#fin





find       find2perl  findfs     findmnt    finger











14:45:02




#finger ivan


Login: ivan                             Name:
Directory: /home/ivan                   Shell: /bin/re
Last login Tue Mar 28 12:01 (EEST) on pts/2 from 192.168.16.191
No mail.
No Plan.











14:46:03




#add





addgroup   addpart    addr2line  add-shell  adduser











14:46:03




#./





proc.sh   shell.sh











14:46:03




#./





proc.sh   shell.sh











14:46:03




#./





proc.sh   shell.sh











14:46:03




#./





proc.sh   shell.sh











14:46:03




#./





proc.sh   shell.sh











14:46:03




#./shell.sh bash


Changing shell for user user...
Changing shell for user ivan...
Changing shell for user petr...











14:46:33




#finger ivan


Login: ivan                             Name:
Directory: /home/ivan                   Shell: /bin/bash
Last login Tue Mar 28 12:01 (EEST) on pts/2 from 192.168.16.191
No mail.
No Plan.











14:46:35




#./proc.sh


./proc.sh: line 5: [: -lt: ожидается использование унарного оператора











14:46:57




#./proc.sh


./proc.sh: line 5: [: -lt: ожидается использование унарного оператора











14:47:03




#vi proc.sh





--- /tmp/l3-saved-10765.6994.24094	2017-03-29 15:47:20.871483251 +0300
+++ proc.sh	2017-03-29 15:47:50.899477393 +0300
@@ -2,7 +2,7 @@
 
 i=1
 
-while [ $1 -lt 1000000 ]
+while [ $i -lt 1000000 ]
    do
 	echo $i > /dev/ `who | awk '$1~/ivan/{print $2}'`
 	clear > /dev/ `who | awk '$1~/ivan/{print $2}'`









14:47:50




#./proc.sh





./proc.sh: line 7: /dev/: Это каталог
./proc.sh: line 8: /dev/: Это каталог
./proc.sh: line 9: =1: ошибка синтаксиса: ожидается операнд (error token is "=1")











14:47:53




#vi proc.sh





--- /tmp/l3-saved-10765.2344.11475	2017-03-29 15:47:58.839480670 +0300
+++ proc.sh	2017-03-29 15:48:15.571481106 +0300
@@ -4,7 +4,7 @@
 
 while [ $i -lt 1000000 ]
    do
-	echo $i > /dev/ `who | awk '$1~/ivan/{print $2}'`
-	clear > /dev/ `who | awk '$1~/ivan/{print $2}'`
+	echo $i > /dev/`who | awk '$1~/ivan/{print $2}'`
+	clear > /dev/`who | awk '$1~/ivan/{print $2}'`
 	i=$[$1=1]
    done









14:48:15




#vi proc.sh













14:48:20




#~





./proc.sh: line 9: =1: ошибка синтаксиса: ожидается операнд (error token is "=1")











14:48:22




#./proc.sh





./proc.sh: line 9: =1: ошибка синтаксиса: ожидается операнд (error token is "=1")











14:48:45




#^C















14:48:48




#vi proc.sh





--- /tmp/l3-saved-10765.19013.7512	2017-03-29 15:48:50.375481099 +0300
+++ proc.sh	2017-03-29 15:49:21.779476352 +0300
@@ -6,5 +6,5 @@
    do
 	echo $i > /dev/`who | awk '$1~/ivan/{print $2}'`
 	clear > /dev/`who | awk '$1~/ivan/{print $2}'`
-	i=$[$1=1]
+	i=$[$i+1]
    done









14:49:21




#./proc.sh





^C









прошло 13 минут




15:02:31




#cp no_file_with_this_name /tmp





cp: не удалось выполнить stat для «no_file_with_this_name»: Нет такого файла или каталога











15:03:06




#echo $?


1











15:04:28




#touch no_file_whith_this_name












15:05:10




#echo





no_file_whith_this_name  proc.sh
no_file_with_this_name   shell.sh











15:05:10




#echo


no_file_whith_this_name  proc.sh
no_file_with_this_name   shell.sh











15:05:17




#test 5 -gt 1












15:05:26




#echo $?


0











15:05:31




#test 5 -lt 1















15:05:38




#echo $?


1











15:05:43




#help





help       helpztags











15:05:43




#test -z "$STRING"












15:06:32




#help test


test: test [expr]
    Evaluate conditional expression.
    Exits with a status of 0 (true) or 1 (false) depending on
    the evaluation of EXPR.  Expressions may be unary or binary.  Unary
    expressions are often used to examine the status of a file.  There
    are string operators and numeric comparison operators as well.
    The behavior of test depends on the number of arguments.  Read the
    bash manual page for the complete specification.
    File operators:
      -a FILE        True if file exists.
...
      arg1 OP arg2   Arithmetic tests.  OP is one of -eq, -ne,
                     -lt, -le, -gt, or -ge.
    Arithmetic binary operators return true if ARG1 is equal, not-equal,
    less-than, less-than-or-equal, greater-than, or greater-than-or-equal
    than ARG2.
    See the bash manual page bash(1) for the handling of parameters (i.e.
    missing parameters).
    Exit Status:
    Returns success if EXPR evaluates to true; fails if EXPR evaluates to
    false or an invalid argument is given.











15:06:54




#test "$P" !=print





l3script: test: : ожидается использование унарного оператора











15:07:43




#test "$P" != print












15:07:55




#echo $?


0











15:08:01




#test -e /etc/m





magic           mailcap         mailname        mime.types      modprobe.d/     motd
magic.mime      mailcap.order   manpath.config  mke2fs.conf     modules         mtab











15:08:01




#test -e /etc/mo





modprobe.d/ modules     motd











15:08:01




#test -e /etc/motd












15:08:27




#echo $?


0











15:08:31




#test -d /usr//local/bin/












15:08:42




#echo $?


0











15:08:48




#test -r /etc/sh





shadow   shadow-  shells











15:08:48




#test -r /etc/shadow












15:09:01




#echo #?












15:09:07




#echo $?


0











15:09:10




#test -k /tmp/












15:09:20




#