Linux 通过shell脚本替换/etc/fstab文件中的noexec to exec选项
只有noexec to exec的/tmp选项应该更改。noexec to exec的/var/tmp选项不应更改 /etc/fstab的内容Linux 通过shell脚本替换/etc/fstab文件中的noexec to exec选项,linux,shell,exec,tmp,fstab,Linux,Shell,Exec,Tmp,Fstab,只有noexec to exec的/tmp选项应该更改。noexec to exec的/var/tmp选项不应更改 /etc/fstab的内容 UUID=f229a689-a31e-4f1a-a823-9a69ee6ec558 / xfs defaults 0 0 UUID=eeb1df48-c9b0-408f-a693-38e2f7f80895 /boot xfs defaults 1 2 UU
UUID=f229a689-a31e-4f1a-a823-9a69ee6ec558 / xfs defaults 0 0
UUID=eeb1df48-c9b0-408f-a693-38e2f7f80895 /boot xfs defaults 1 2
UUID=b41e6ef9-c638-4084-8a7e-26ecd2964893 swap swap defaults 0 0
UUID=79aa80a1-fa97-4fe1-a92d-eadf79721204 /var xfs defaults 1 2
UUID=644be3d0-433c-4ed5-bf12-7f61d5b99860 /tmp xfs defaults,nodev,nosuid,noexec 1 2
UUID=decda446-34ac-45b6-826c-ae3f090ed717 /var/log xfs defaults 1 2
UUID=a74170bc-0309-4b3b-862e-722fb7a6882d /var/tmp xfs defaults,nodev,nosuid,noexec 1 2
使用
awk
:
$ cat 1.awk
$2=="/tmp" { n=split($4,a,",");
str=""
for (i=1; i <= n; i++ ) {
if (a[i] != "noexec") {
if (length(str))
str=str","
str=str""a[i]
}
}
$4=str; print }
$2 != "/tmp" { print }
$ awk -f 1.awk fstab
UUID=f229a689-a31e-4f1a-a823-9a69ee6ec558 / xfs defaults 0 0
UUID=eeb1df48-c9b0-408f-a693-38e2f7f80895 /boot xfs defaults 1 2
UUID=b41e6ef9-c638-4084-8a7e-26ecd2964893 swap swap defaults 0 0
UUID=79aa80a1-fa97-4fe1-a92d-eadf79721204 /var xfs defaults 1 2
UUID=644be3d0-433c-4ed5-bf12-7f61d5b99860 /tmp xfs defaults,nodev,nosuid 1 2
UUID=decda446-34ac-45b6-826c-ae3f090ed717 /var/log xfs defaults 1 2
UUID=a74170bc-0309-4b3b-862e-722fb7a6882d /var/tmp xfs defaults,nodev,nosuid,noexec 1 2
$cat 1.awk
$2==“/tmp”{n=split($4,a,,”);
str=“”
对于(i=1;i),您的/var/log行中没有noexec。是否有理由sed
不做您想做的事情?