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pstree: remove unnecessary globbing and environment pollution (thanks cgnarne, cinap_lenrek)

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qwx 2024-11-03 14:58:56 +00:00
parent 9ae4b3d9fc
commit 6500b30363
1 changed files with 5 additions and 7 deletions
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12
rc/bin/pstree
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@ -1,9 +1,7 @@
#!/bin/rc
p=0
if(! ~ $#* 0)
p=$1
cd /proc || exit
ls -d [0-9]* | sort -n | awk -v 'this='^$p '
if(~ $#* 0)
*=0
cd /proc && ls | sort -n | awk -v 'this='^$1 '
function cat(f, v){
getline v < f
close(f)
@ -12,7 +10,7 @@ function cat(f, v){
BEGIN{
OFS="\t"
}
{
/^[0-9]+/ {
s = cat($1"/args")
if(s == ""){
s = cat($1"/status")
@ -41,7 +39,7 @@ function out(p, sep, k, m, i, n, c, s){
END{
for(i=1; i<=length(pid); i++){
p = pid[i]
if(!(ppid[p] in proc) && ppid[p] != 0)
if(p && !(ppid[p] in proc) && ppid[p] != 0)
child[0,++nchild[0]] = p
}
out(this, "", "", 0)