blocks|key|1566584|text|有几个选项：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1566585|ps+-fp+<pid>
cat+/proc/<pid>/cmdline+%7C+sed+-e+"s/\x00/+/g";+echo|code-block|syntax|javascript|1566586|在Linux上的/proc/<pid>上有更多的信息，看看就知道了。|offset|length|style|CODE|1566587|在其他Unixes上，事情可能会有所不同。ps命令可以在任何地方工作，/proc的东西是特定于操作系统的。例如，在AIX上，/proc中没有cmdline。|1566588|entityMap^0|0|0|8|B|0|L|2|Z|5|1Q|5|1Y|7|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@$I|T|J|U|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|V|8|@$I|W|J|X|K|L]|$I|Y|J|Z|K|L]|$I|10|J|11|K|L]|$I|12|J|13|K|L]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$]]

There are several options:

<pre><code>ps -fp &lt;pid&gt;
cat /proc/&lt;pid&gt;/cmdline | sed -e "s/\x00/ /g"; echo
</code></pre>

There is more info in <code>/proc/&lt;pid&gt;</code> on Linux, just have a look.

On other Unixes things might be different. The <code>ps</code> command will work everywhere, the <code>/proc</code> stuff is OS specific. For example on AIX there is no <code>cmdline</code> in <code>/proc</code>.

blocks|key|1566748|text|这将会起到作用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1566749|xargs+-0+<+/proc/<pid>/cmdline|code-block|syntax|javascript|1566750|如果没有xargs，参数之间将不会有空格，因为它们已被转换为NULs。|1566751|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This will do the trick:

<pre><code>xargs -0 &lt; /proc/&lt;pid&gt;/cmdline
</code></pre>

Without the xargs, there will be no spaces between the arguments, because they have been converted to NULs.

blocks|key|1566688|text|完整的命令行|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1566689|对于Linux和Unix系统，您可以使用ps+-ef+%7C+grep+process_name获取完整的命令行。|offset|length|style|CODE|1566690|在SunOS系统上，如果希望获得完整的命令行，可以使用|1566691|/usr/ucb/ps+-auxww+%7C+grep+-i+process_name|code-block|syntax|javascript|1566692|要获得完整的命令行，您需要成为超级用户。|1566693|参数列表|1566694|pargs+-a+PROCESS_ID|1566695|将给出传递给进程的参数的详细列表。它将输出参数数组，如下所示：|1566696|argv[o]:+first+argument
argv[1]:+second..
argv[*]:+and+so+on..|1566697|我没有在Linux上找到任何类似的命令，但我会使用以下命令来获得类似的输出：|1566698|tr+'\0'+'\n'+<+/proc/<pid>/environ|1566699|entityMap^0|0|K|Q|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|15|8|@$D|16|E|17|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|18|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|19|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|1A|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@]|A|$]]|$1|S|3|T|5|L|7|1C|8|@]|9|@]|A|$M|N]]|$1|U|3|V|5|6|7|1D|8|@]|9|@]|A|$]]|$1|W|3|X|5|L|7|1E|8|@]|9|@]|A|$M|N]]|$1|Y|3|Z|5|6|7|1F|8|@]|9|@]|A|$]]|$1|10|3|11|5|L|7|1G|8|@]|9|@]|A|$M|N]]|$1|12|3|-4|5|6|7|1H|8|@]|9|@]|A|$]]]|13|$]]

<h2>Full commandline</h2>

For Linux &amp; Unix System you can use <code>ps -ef | grep process_name</code> to get the full command line.

On SunOS systems, if you want to get full command line, you can use 

<pre><code>/usr/ucb/ps -auxww | grep -i process_name
</code></pre>

To get the full command line you need to become super user.

<h2>List of arguments</h2>

<pre><code>pargs -a PROCESS_ID
</code></pre>

will give a detailed list of arguments passed to a process. It will output the array of arguments in like this:

<pre><code>argv[o]: first argument
argv[1]: second..
argv[*]: and so on..
</code></pre>

I didn't find any similar command for Linux, but I would use the following command to get similar output:

<pre><code>tr '\0' '\n' &lt; /proc/&lt;pid&gt;/environ
</code></pre>

blocks|key|1351343|text|在Linux中，打印带有空格的/proc/PID/cmdline的另一种变体是：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1351344|cat+-v+/proc/PID/cmdline+%7C+sed+'s/\%5E@/\+/g'+&&+echo|code-block|syntax|javascript|1351345|通过这种方式，cat将NULL+characters打印为%5E@，然后使用sed将它们替换为空格；echo打印一个换行符。|1351346|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Null_character^0|F|H|0|0|7|3|T|2|10|3|1C|4|B|F|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]|$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@$9|17|A|18|1|19]]|E|$]]|$1|M|3|-4|5|6|7|1A|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

Another variant of printing <code>/proc/PID/cmdline</code> with spaces in Linux is:

<pre><code>cat -v /proc/PID/cmdline | sed 's/\^@/\ /g' &amp;&amp; echo
</code></pre>

In this way <code>cat</code> prints <a href="http://en.wikipedia.org/wiki/Null_character" rel="nofollow">NULL characters</a> as <code>^@</code> and then you replace them with a space using <code>sed</code>; <code>echo</code> prints a newline.

blocks|key|1351395|text|不需要使用多个命令来编辑流，只需使用one+-+tr将一个字符转换为另一个字符：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1351396|tr+'\0'+'+'+</proc/<pid>/cmdline|code-block|syntax|javascript|1351397|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Rather than using multiple commands to edit the stream, just use one - tr translates one character to another:

<pre><code>tr '\0' ' ' &lt;/proc/&lt;pid&gt;/cmdline
</code></pre>

blocks|key|1351564|text|您可以简单地使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1351565|ps+-o+args=+-f+-p+ProcessPid|code-block|syntax|javascript|1351566|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can simply use:

<pre><code>ps -o args= -f -p ProcessPid
</code></pre>

blocks|key|1351451|text|除了上面所有的转换文本的方法之外，如果你简单地使用‘string’，默认情况下它将在单独的行中输出。附加的好处是，它还可以防止任何可能扰乱您的终端的字符出现。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1351452|这两个输出都在一个命令中：|1351453|strings+/proc//cmdline+/proc//environ|1351454|真正的问题是。有没有办法查看Linux进程的真实命令行，该命令行已被更改，以便cmdline包含更改后的文本，而不是实际运行的命令。|1351455|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

In addition to all the above ways to convert the text, if you simply use 'strings', it will make the output on separate lines by default. With the added benefit that it may also prevent any chars that may scramble your terminal from appearing.

Both output in one command:

strings /proc//cmdline /proc//environ

The real question is... is there a way to see the real command line of a process in Linux that has been altered so that the cmdline contains the altered text instead of the actual command that was run.

blocks|key|1351493|text|在Solaris上|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1351494|+++++ps+-eo+pid,comm|code-block|syntax|javascript|1351495|similar可以在类unix系统上使用。|1351496|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

On Solaris

<pre><code> ps -eo pid,comm
</code></pre>

similar can be used on unix like systems.

blocks|key|1351547|text|在Linux上，使用bash将命令输出为带引号的参数，以便您可以编辑命令并重新运行它|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1351548|</proc/"${pid}"/cmdline+xargs+--no-run-if-empty+-0+-n1+\
++++bash+-c+'printf+"%25q+"+"${1}"'+/dev/null;+echo|code-block|syntax|javascript|1351549|在Solaris上，使用bash+(使用3.2.51(1)-release测试)和不使用gnu+userland：|1351550|IFS=$'\002'+tmpargs=(+$(+pargs+"${pid}"+\
++++%7C+/usr/bin/sed+-n+'s/%5Eargv\[[0-9]\{1,\}\]:+//gp'+\
++++%7C+tr+'\n'+'\002'+)+)
for+tmparg+in+"${tmpargs[@]}";+do
++++printf+"%25q+"+"$(+echo+-e+"${tmparg}"+)"
done;+echo|1351551|Linux+bash示例(粘贴到终端)：|1351552|{
##+setup+intial+args
argv=(+/bin/bash+-c+'{+/usr/bin/sleep+10;+echo;+}'+/dev/null+'BEGIN+{system("sleep+2")}'+"this+is"+\
++++"some"+"args+"$'\n'"+that"+$'\000'+$'\002'+"need"+"quot"$'\t'"ing"+)

##+run+in+background
"${argv[@]}"+&

##+recover+into+eval+string+that+assigns+it+to+argv_recovered
eval_me=$(
++++printf+"argv_recovered=(+"
++++</proc/"${!}"/cmdline+xargs+--no-run-if-empty+-0+-n1+\
++++++++bash+-c+'printf+"%25q+"+"${1}"'+/dev/null
++++printf+"+)\n"
)

##+do+eval
eval+"${eval_me}"

##+verify+match
if+[+"$(+declare+-p+argv+)"+==+"$(+declare+-p+argv_recovered+%7C+sed+'s/argv_recovered/argv/'+)"+];
then
++++echo+MATCH
else
++++echo+NO+MATCH
fi
}|1351553|输出：|1351554|MATCH|1351555|Solaris+Bash示例：|1351556|{
##+setup+intial+args
argv=(+/bin/bash+-c+'{+/usr/bin/sleep+10;+echo;+}'+/dev/null+'BEGIN+{system("sleep+2")}'+"this+is"+\
++++"some"+"args+"$'\n'"+that"+$'\000'+$'\002'+"need"+"quot"$'\t'"ing"+)

##+run+in+background
"${argv[@]}"+&
pargs+"${!}"
ps+-fp+"${!}"

declare+-p+tmpargs
eval_me=$(
++++printf+"argv_recovered=(+"
++++IFS=$'\002'+tmpargs=(+$(+pargs+"${!}"+\
++++++++%7C+/usr/bin/sed+-n+'s/%5Eargv\[[0-9]\{1,\}\]:+//gp'+\
++++++++%7C+tr+'\n'+'\002'+)+)
++++for+tmparg+in+"${tmpargs[@]}";+do
++++++++printf+"%25q+"+"$(+echo+-e+"${tmparg}"+)"
++++done;+echo
++++printf+"+)\n"
)

##+do+eval
eval+"${eval_me}"


##+verify+match
if+[+"$(+declare+-p+argv+)"+==+"$(+declare+-p+argv_recovered+%7C+sed+'s/argv_recovered/argv/'+)"+];
then
++++echo+MATCH
else
++++echo+NO+MATCH
fi
}|1351557|1351558|1351559|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|12|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|S|3|T|5|6|7|18|8|@]|9|@]|A|$]]|$1|U|3|V|5|D|7|19|8|@]|9|@]|A|$E|F]]|$1|W|3|P|5|6|7|1A|8|@]|9|@]|A|$]]|$1|X|3|R|5|D|7|1B|8|@]|9|@]|A|$E|F]]|$1|Y|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|Z|$]]

On Linux, with bash, to output as quoted args so you can edit the command and rerun it

<pre><code>&lt;/proc/"${pid}"/cmdline xargs --no-run-if-empty -0 -n1 \
 bash -c 'printf "%q " "${1}"' /dev/null; echo
</code></pre>

On Solaris, with bash (tested with 3.2.51(1)-release) and without gnu userland:

<pre><code>IFS=$'\002' tmpargs=( $( pargs "${pid}" \
 | /usr/bin/sed -n 's/^argv\[[0-9]\{1,\}\]: //gp' \
 | tr '\n' '\002' ) )
for tmparg in "${tmpargs[@]}"; do
 printf "%q " "$( echo -e "${tmparg}" )"
done; echo
</code></pre>

Linux bash Example (paste in terminal):

<pre><code>{
## setup intial args
argv=( /bin/bash -c '{ /usr/bin/sleep 10; echo; }' /dev/null 'BEGIN {system("sleep 2")}' "this is" \
 "some" "args "$'\n'" that" $'\000' $'\002' "need" "quot"$'\t'"ing" )

## run in background
"${argv[@]}" &amp;

## recover into eval string that assigns it to argv_recovered
eval_me=$(
 printf "argv_recovered=( "
 &lt;/proc/"${!}"/cmdline xargs --no-run-if-empty -0 -n1 \
 bash -c 'printf "%q " "${1}"' /dev/null
 printf " )\n"
)

## do eval
eval "${eval_me}"

## verify match
if [ "$( declare -p argv )" == "$( declare -p argv_recovered | sed 's/argv_recovered/argv/' )" ];
then
 echo MATCH
else
 echo NO MATCH
fi
}
</code></pre>

Output:

<pre><code>MATCH
</code></pre>

Solaris Bash Example:

<pre><code>{
## setup intial args
argv=( /bin/bash -c '{ /usr/bin/sleep 10; echo; }' /dev/null 'BEGIN {system("sleep 2")}' "this is" \
 "some" "args "$'\n'" that" $'\000' $'\002' "need" "quot"$'\t'"ing" )

## run in background
"${argv[@]}" &amp;
pargs "${!}"
ps -fp "${!}"

declare -p tmpargs
eval_me=$(
 printf "argv_recovered=( "
 IFS=$'\002' tmpargs=( $( pargs "${!}" \
 | /usr/bin/sed -n 's/^argv\[[0-9]\{1,\}\]: //gp' \
 | tr '\n' '\002' ) )
 for tmparg in "${tmpargs[@]}"; do
 printf "%q " "$( echo -e "${tmparg}" )"
 done; echo
 printf " )\n"
)

## do eval
eval "${eval_me}"


## verify match
if [ "$( declare -p argv )" == "$( declare -p argv_recovered | sed 's/argv_recovered/argv/' )" ];
then
 echo MATCH
else
 echo NO MATCH
fi
}
</code></pre>

Output:

<pre><code>MATCH
</code></pre>

blocks|key|1351613|text|如果你想得到一个尽可能长的(不确定有什么限制)，类似于Solaris的pargs，你可以在Linux和OSX上使用这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1351614|ps+-ww+-o+pid,command+[-p+<pid>+...+]|code-block|syntax|javascript|1351615|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.oracle.com/cd/E19683-01/806-5202/6je7shk59/index.html^0|Z|5|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

If you want to get a long-as-possible (not sure what limits there are), similar to Solaris' <a href="https://docs.oracle.com/cd/E19683-01/806-5202/6je7shk59/index.html" rel="nofollow noreferrer">pargs</a>, you can use this on Linux &amp; OSX:

<pre><code>ps -ww -o pid,command [-p &lt;pid&gt; ... ]
</code></pre>

On SunOS there is <code>pargs</code> command that prints the command line arguments passed to the running process. 

Is there is any similar command on other Unix environments?

How to get the command line args passed to a running process on unix/linux systems?

Solaris

Linux

Unix

在SunOS上，有一个pargs命令可以打印传递给正在运行的进程的命令行参数。在其他Unix环境中是否有类似的命令？

问如何将命令行参数传递给unix/linux系统上正在运行的进程？
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