Журнал лабораторных работ

--- /tmp/l3-saved-9146.1997.18996	2017-06-08 11:12:28.936453830 +0300
+++ test.sh	2017-06-08 11:14:14.728433354 +0300
@@ -1,5 +1,5 @@
 #!/bin/bash
-users=$(awk -F: /etc/passwd '$3>999 && $3!=65534 {print$1}' | tr '\n' ' ')
+users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
 for u in $users
     do
 	echo "Changing shel $1 for user $u"

Changing shel /bin/sh for user user
Changing shel /bin/sh for user ivan
Changing shel /bin/sh for user petr

--- /tmp/l3-saved-9146.5962.1060	2017-06-08 11:15:08.620454565 +0300
+++ test.sh	2017-06-08 11:15:22.328474010 +0300
@@ -2,7 +2,7 @@
 users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
 for u in $users
     do
-	echo "Changing shel $1 for user $u"
+	echo "Changing shell $1 for user $u"
 	usermod -s $1 $u
     done
 

Changing shell /bin/sh for user user
usermod: изменения не внесены
Changing shell /bin/sh for user ivan
usermod: изменения не внесены
Changing shell /bin/sh for user petr
usermod: изменения не внесены

#!/bin/bash
users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
for u in $users
    do
        echo "Changing shell $1 for user $u"
        usermod -s $1 $u
    done

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
...
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
libuuid:x:100:101::/var/lib/libuuid:/bin/sh
Debian-exim:x:101:103::/var/spool/exim4:/bin/false
user:x:1000:1000:user,,,:/home/user:/bin/sh
sshd:x:102:65534::/var/run/sshd:/usr/sbin/nologin
ivan:x:1001:1001::/home/ivan:/bin/sh
petr:x:1002:1002::/home/petr:/bin/sh

#!/bin/bash
users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
for u in $users
    do
        echo "Changing shell $1 for user $u"
        usermod -s $1 $u
    done

Changing shell /bin/bash for user user
Changing shell /bin/bash for user ivan
Changing shell /bin/bash for user petr

#!/bin/bash
users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
for u in $users
    do
        echo "Changing shell $1 for user $u"
        usermod -s $1 $u
    done

--- /tmp/l3-saved-9146.29758.14127	2017-06-08 11:20:22.788459205 +0300
+++ test.sh	2017-06-08 11:24:29.488463922 +0300
@@ -1,4 +1,5 @@
 #!/bin/bash
+s=${1:-/bin/bash}
 users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
 for u in $users
     do

--- /tmp/l3-saved-9146.3024.4427	2017-06-08 11:24:53.936501879 +0300
+++ test.sh	2017-06-08 11:25:41.244416568 +0300
@@ -3,7 +3,7 @@
 users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
 for u in $users
     do
-	echo "Changing shell $1 for user $u"
-	usermod -s $1 $u
+	echo "Changing shell $s for user $u"
+	usermod -s $s $u
     done
 

Changing shell /bin/zsh for user user
Changing shell /bin/zsh for user ivan
Changing shell /bin/zsh for user petr

Changing shell /bin/bash for user user
Changing shell /bin/bash for user ivan
Changing shell /bin/bash for user petr

#!/bin/bash
s=${1:-/bin/bash}
users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
for u in $users
    do
        echo "Changing shell $s for user $u"
        usermod -s $s $u
    done

--- /tmp/l3-saved-9146.29685.29117	2017-06-08 11:27:30.464466048 +0300
+++ test.sh	2017-06-08 12:30:37.804454119 +0300
@@ -1,5 +1,12 @@
 #!/bin/bash
-s=${1:-/bin/bash}
+shells=$(cat /etc/shells | sed '/^#/d' | tr '\n' ' ')
+r=`echo $1`
+for shell in $shells
+    do
+	test $1 = $shell 2> /dev/null && s=$1
+    done
+test -v r || s=/bin/bash
+test -v s || s=/bin/bash
 users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
 for u in $users
     do

Changing shell /bin/bash for user user
usermod: изменения не внесены
Changing shell /bin/bash for user ivan
usermod: изменения не внесены
Changing shell /bin/bash for user petr
usermod: изменения не внесены

Changing shell /bin/bash for user user
usermod: изменения не внесены
Changing shell /bin/bash for user ivan
usermod: изменения не внесены
Changing shell /bin/bash for user petr
usermod: изменения не внесены

Changing shell /bin/sh for user user
Changing shell /bin/sh for user ivan
Changing shell /bin/sh for user petr

Changing shell /bin/bash for user user
Changing shell /bin/bash for user ivan
Changing shell /bin/bash for user petr

Changing shell /bin/zsh for user user
Changing shell /bin/zsh for user ivan
Changing shell /bin/zsh for user petr

Changing shell /bin/bash for user user
Changing shell /bin/bash for user ivan
Changing shell /bin/bash for user petr

#!/bin/bash
shells=$(cat /etc/shells | sed '/^#/d' | tr '\n' ' ')
r=`echo $1`
for shell in $shells
    do
        test $1 = $shell 2> /dev/null && s=$1
    done
test -v r || s=/bin/bash
test -v s || s=/bin/bash
users=$(awk -F: '$3>999 && $3!=65534 {print $1}' /etc/passwd | tr '\n' ' ')
for u in $users
    do
        echo "Changing shell $s for user $u"
        usermod -s $s $u
    done

0

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

0