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--- linux:general:basics [2021/03/15 12:06] – lunetikk
+++ linux:general:basics [2022/12/16 10:41] (current) – lunetikk
@@ Line 66: / Line 66: @@
 |  find /tmp -type f -atime +30 -delete  |  delete files in /tmp with no access in the last 30 days  |
 |  dpkg --print-architecture  |  show cpu architecture (amd64/i386/...) (debian/ubuntu only)  |
-|  nmap -sL <IP like 192.168.178.*>  |  List all hosts in the given IP-range  |
+|  nmap -sL <IP like 192.168.178.*>  |  list targets to scan in the given IP-range  |
+|  nmap -sn <IP like 192.168.178.*>  |  ping scan in the given IP-range  |
 |  yes %%|%% yum install <package>  |  submit yes - also works for other commands  |
 |  du -hs * %%|%% sort -h %%|%% head   |  show files by size and sort by size  |
+|  rm !(*.log)   |  remove all files except for *.log  |
+|  ps -f -p <PID> -o lstart=  |  show starttime of process  |
+|  install -d -o <user> -g <group> -m <mode> <path>  |  mkdir with specific user, group and rights  |
 ==== Save textfile with password (VIM) ====
@@ Line 129: / Line 133: @@
 |  yum repolist  |  Show enabled repositorys  |\\
 |  yum clean all  |  Clean all packages and meta data from cache  |\\
+|  rm -rf /var/cache/yum  |  Clean all packages and meta data incl. orphaned data from cache  |\\
 |  yum update  |  Update all installed packages  |\\
 |  yum update %%<%%PACKAGE%%>%%  |  Update PACKAGE  |\\

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