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updated and fixed strace one-liners

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- signed-off-by: trimstray <trimstray@gmail.com>
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trimstray 2019-03-27 12:02:03 +01:00
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commit 74d49eb293
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README.md
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@ -1438,24 +1438,30 @@ ___
##### Tool: [strace](https://en.wikipedia.org/wiki/Strace) ##### Tool: [strace](https://en.wikipedia.org/wiki/Strace)
###### Track child process ###### Track with child processes
```bash ```bash
strace -f -p $(pidof glusterfsd) strace -f -p $(pidof glusterfsd)
``` ```
###### Track process after 30 seconds ###### Track process with 30 seconds limit
```bash ```bash
timeout 30 strace $(< /var/run/zabbix/zabbix_agentd.pid) timeout 30 strace $(< /var/run/zabbix/zabbix_agentd.pid)
``` ```
###### Track child process and redirect output to a file ###### Track processes and redirect output to a file
```bash ```bash
ps auxw | grep '[a]pache' | awk '{print " -p " $2}' | xargs strace -o /tmp/strace-apache-proc.out ps auxw | grep '[a]pache' | awk '{print " -p " $2}' | xargs strace -o /tmp/strace-apache-proc.out
``` ```
###### Track with print time spent in each syscall and limit length of print strings
```bash
ps auxw | grep '[i]init_policy' | awk '{print " -p " $2}' | xargs strace -f -e trace=network -T -s 10000
```
###### Track the open request of a network port ###### Track the open request of a network port
```bash ```bash