/proc µð·ºÅ丮´Â ½ÇÁ¦·Î´Â °¡»ó ÆÄÀϽýºÅÛÀÔ´Ï´Ù. /proc µð·ºÅ丮¿¡ µé¾î ÀÖ´Â ÆÄÀϵéÀº ÇöÀç ½ÇÇàÁßÀÎ ½Ã½ºÅÛ°ú Ä¿³Î ÇÁ·Î¼¼½º¿¡ ´ëÇÑ Á¤º¸¹× Åë°è ÀڷḦ ¹Ý¿µÇÏ°í ÀÖ½À´Ï´Ù.
bash$ cat /proc/devices Character devices: 1 mem 2 pty 3 ttyp 4 ttyS 5 cua 7 vcs 10 misc 14 sound 29 fb 36 netlink 128 ptm 136 pts 162 raw 254 pcmcia Block devices: 1 ramdisk 2 fd 3 ide0 9 md bash$ cat /proc/interrupts CPU0 0: 84505 XT-PIC timer 1: 3375 XT-PIC keyboard 2: 0 XT-PIC cascade 5: 1 XT-PIC soundblaster 8: 1 XT-PIC rtc 12: 4231 XT-PIC PS/2 Mouse 14: 109373 XT-PIC ide0 NMI: 0 ERR: 0 bash$ cat /proc/partitions major minor #blocks name rio rmerge rsect ruse wio wmerge wsect wuse running use aveq 3 0 3007872 hda 4472 22260 114520 94240 3551 18703 50384 549710 0 111550 644030 3 1 52416 hda1 27 395 844 960 4 2 14 180 0 800 1140 3 2 1 hda2 0 0 0 0 0 0 0 0 0 0 0 3 4 165280 hda4 10 0 20 210 0 0 0 0 0 210 210 ... bash$ cat /proc/loadavg 0.13 0.42 0.27 2/44 1119 |
½© ½ºÅ©¸³Æ®´Â /proc¿¡ ÀÖ´Â ÆÄÀÏ¿¡¼ µ¥ÀÌÅ͸¦ »Ì¾Æ³¾ ¼öµµ ÀÖ½À´Ï´Ù. [1]
kernel_version=$( awk '{ print $3 }' /proc/version ) |
CPU=$( awk '/model name/ {print $4}' < /proc/cpuinfo ) if [ $CPU = Pentium ] then ¾î¶² ¸í·É¾î ½ÇÇà ... else ´Ù¸¥ ¸í·É¾î ½ÇÇà ... fi |
/proc µð·ºÅ丮¿¡´Â º°³ª°Ôµµ ¼ýÀÚ·Î µÈ µð·ºÅ丮µéÀÌ µé¾î ÀÖ½À´Ï´Ù. ÀÌ ¼ºê µð·ºÅ丮µéÀº ÇöÀç ½ÇÇàÁßÀÎ ÇÁ·Î¼¼½º ID¸¦ ³ªÅ¸³À´Ï´Ù. °¢ ¼ºê µð·ºÅ丮¿¡´Â ÇØ´ç ÇÁ·Î¼¼½º¿¡ ´ëÇÑ À¯¿ëÇÑ Á¤º¸µéÀ» ´ã°í ÀÖ´Â ÆÄÀÏÀÌ µé¾î Àִµ¥, stat°ú status ÆÄÀÏÀº ÇÁ·Î¼¼½º¿¡ ´ëÇÑ Åë°è Á¤º¸¸¦ ´ã°í ÀÖ°í, cmdline ÆÄÀÏÀº ÇØ´ç ÇÁ·Î¼¼½º°¡ ½ÇÇàµÆÀ» ¶§ÀÇ ¸í·É¾î ÁÙ ÀÎÀÚ¸¦ ´ã°í ÀÖ°í, exe ÆÄÀÏÀº ½ÇÇàÁßÀÎ ÇÁ·Î¼¼½ºÀÇ ¿ÏÀüÇÑ °æ·Î¸íÀ» ½Éº¼¸¯ ¸µÅ©ÇÏ°í ÀÖ½À´Ï´Ù. °¢ ¼ºê µð·ºÅ丮¿¡´Â ÀÌ·±½ÄÀÇ ´Ù¸¥ ÆÄÀϵ鵵 ´õ ÀÖÁö¸¸ ½© ½ºÅ©¸³ÆÃÀÇ °üÁ¡¿¡¼´Â ÀÌ Á¤µµ¸é ÃæºÐÇÒ °Ì´Ï´Ù.
¿¹ 28-1. ƯÁ¤ PID¿Í °ü·ÃÀÖ´Â ÇÁ·Î¼¼½º ã±â
#!/bin/bash # pid-identifier.sh: PID¿¡ ÇØ´çÇÏ´Â ÇÁ·Î¼¼½ºÀÇ ¿ÏÀüÇÑ °æ·Î¸íÀ» ã±â. ARGNO=1 # ÇÊ¿äÇÑ ÀÎÀÚ ¼ö. E_WRONGARGS=65 E_BADPID=66 E_NOSUCHPROCESS=67 E_NOPERMISSION=68 PROCFILE=exe if [ $# -ne $ARGNO ] then echo "»ç¿ë¹ý: `basename $0` PID-number" >&2 # ¿¡·¯ ¸Þ¼¼Áö >Ç¥ÁØ¿¡·¯. exit $E_WRONGARGS fi pidno=$( ps ax | grep $1 | awk '{ print $1 }' | grep $1 ) # "ps" ¸ñ·Ï¿¡¼ pid(ù¹ø° Çʵå)¸¦ È®ÀÎ. # ±× ´ÙÀ½¿¡´Â ÀÌ ½ºÅ©¸³Æ®°¡ ½ÇÇà½ÃŲ ÇÁ·Î¼¼½º°¡ ¾Æ´Ñ ½ÇÁ¦ ÇÁ·Î¼¼½ºÀÎÁö È®ÀÎ. # ¸¶Áö¸·ÀÇ "grep $1"ÀÌ ÀÌ·± °¡´É¼ºÀ» Á¦°ÅÇØ ÁÝ´Ï´Ù. if [ -z "$pidno" ] # °á°ú°¡ ¾Æ¹«°Íµµ ¾ø´Ù¸é ±æÀÌ°¡ 0ÀÎ ¹®ÀÚ¿ÀÌ µË´Ï´Ù. then # ÁÖ¾îÁø pid·Î ½ÇÇàÁßÀÎ ÇÁ·Î¼¼½º°¡ ¾øÀ½. echo "½ÇÇàÁßÀÎ ÇÁ·Î¼¼½º°¡ ¾ø½À´Ï´Ù." exit $E_NOSUCHPROCESS fi # ´ë½Å ÀÌ·¸°Ô Çصµ µË´Ï´Ù: # if ! ps $1 > /dev/null 2>&1 # then # ÁÖ¾îÁø pid·Î ½ÇÇàÁßÀÎ ÇÁ·Î¼¼½º ¾øÀ½. # echo "½ÇÇàÁßÀÎ ÇÁ·Î¼¼½º°¡ ¾ø½À´Ï´Ù." # exit $E_NOSUCHPROCESS # fi # ÀÌ Àüü °úÁ¤Àº "pidof" ¸í·É¾î·Î °£´ÜÇÏ°Ô ÇÒ ¼ö ÀÖ½À´Ï´Ù. if [ ! -r "/proc/$1/$PROCFILE" ] # Àбâ ÆÛ¹Ì¼Ç È®ÀÎ. then echo "$1 ÇÁ·Î¼¼½º´Â ½ÇÇàÁßÀÌÁö¸¸," echo "/proc/$1/$PROCFILE À» ÀÐÀ» ¼ö ¾ø½À´Ï´Ù." exit $E_NOPERMISSION # ÀÏ¹Ý »ç¿ëÀÚ´Â /proc ÀÇ ¸î¸î ÆÄÀÏ¿¡ Á¢±ÙÇÒ ¼ö ¾ø½À´Ï´Ù. fi # ¹Ù·Î ¾ÕÀÇ µÎ Å×½ºÆ®µéÀ» ÀÌ·¸°Ô ÇÒ ¼öµµ ÀÖ½À´Ï´Ù: # if ! kill -0 $1 > /dev/null 2>&1 # '0' Àº ½Ã±×³ÎÀÌ ¾Æ´Ï°í ÇØ´ç ÇÁ·Î¼¼½º¿¡ # ½Ã±×³ÎÀ» º¸³¾ ¼ö ÀÖ´ÂÁö¸¦ È®ÀÎÇؼ # ½ÇÇà ¿©ºÎ¸¦ ¾Ë ¼ö ÀÖ½À´Ï´Ù. # then echo "PID °¡ Á¸ÀçÇÏÁö ¾Ê°Å³ª ¼ÒÀ¯ÀÚ°¡ ¾Æ´Õ´Ï´Ù." >&2 # exit $E_BADPID # fi exe_file=$( ls -l /proc/$1 | grep "exe" | awk '{ print $11 }' ) # ȤÀº exe_file=$( ls -l /proc/$1/exe | awk '{print $11}' ) # # /proc/pid-number/exe ´Â ±× ½ÇÇàÁßÀÎ ÇÁ·Î¼¼½ºÀÇ # ¿ÏÀüÇÑ °æ·Î¸í¿¡ ´ëÇÑ ½Éº¼¸¯ ¸µÅ©ÀÔ´Ï´Ù. if [ -e "$exe_file" ] # /proc/pid-number/exe °¡ Á¸ÀçÇÑ´Ù¸é... then # ÇØ´ç ÇÁ·Î¼¼½º°¡ Á¸ÀçÇÏ´Â °ÍÀÓ. echo "$1 ¹ø ÇÁ·Î¼¼½º´Â $exe_file À¸·Î ½ÇÇàµÆ½À´Ï´Ù." else echo "½ÇÇàÁßÀÎ ÇÁ·Î¼¼½º°¡ ¾ø½À´Ï´Ù." fi # ÀÌ·¸°Ô °øÀ» µé¿© ÀÛ¼ºÇÑ ÀÌ ½ºÅ©¸³Æ®´Â # ps ax | grep $1 | awk '{ print $5 }' # ·Î "°ÅÀÇ" ´ëÄ¡ °¡´ÉÇÕ´Ï´Ù. # ÇÏÁö¸¸ 'ps'ÀÇ 5¹ø° Çʵ尡 ½ÇÇà ÆÄÀÏÀÇ °æ·ÎÀ̸§ÀÌ ¾Æ´Ï¶ó # ±× ÇÁ·Î¼¼½ºÀÇ argv[0] À̱⠶§¹®¿¡ Á¦´ë·Î µ¿ÀÛÇÏÁö ¾Ê½À´Ï´Ù. # # ÇÏÁö¸¸ ´ÙÀ½Àº Á¦´ë·Î µÉ °Ì´Ï´Ù. # find /proc/$1/exe -printf '%l\n' # lsof -aFn -p $1 -d txt | sed -ne 's/^n//p' # Stephane Chazelas °¡ Ãß°¡ ¼³¸íÀ» ÇØ ÁÖ¾ú½À´Ï´Ù. exit 0 |
¿¹ 28-2. ¿Â¶óÀÎ ¿¬°á »óÅÂ
#!/bin/bash PROCNAME=pppd # ppp µ¥¸ó PROCFILENAME=status # ãÀ» °÷ NOTCONNECTED=65 INTERVAL=2 # ¸Å 2 Ãʸ¶´Ù ¾÷µ¥ÀÌÆ® pidno=$( ps ax | grep -v "ps ax" | grep -v grep | grep $PROCNAME | awk '{ print $1 }' ) # 'ppp µ¥¸ó'ÀÎ 'pppd'ÀÇ ÇÁ·Î¼¼½º ¹øÈ£¸¦ ã´Âµ¥, # ±× ÇÁ·Î¼¼½º¸¦ ã±â À§ÇÑ ÇÁ·Î¼¼½º ÀÚ½ÅÀº Á¦°ÅÇØ Áà¾ß µË´Ï´Ù. # # ÇÏÁö¸¸, Oleg Philon ÀÌ ÁöÀûÇßµíÀÌ, #+ ±×³É °£´ÜÈ÷ "pidof"¸¦ ½á¼ ¾ÆÁÖ °£´ÜÇÏ°Ô ÇÒ ¼ö ÀÖ½À´Ï´Ù. # pidno=$( pidof $PROCNAME ) # # ¿©±â¼ ¹è¿ï Á¡: #+ ¸í·É¾îµéÀÌ ³Ê¹« º¹ÀâÇØ Áø´Ù¸é, °£´ÜÇÑ ¹æ¹ýÀ» ã¾Æ º¼ °Í. if [ -z "$pidno" ] # pid °¡ ¾ø´Ù¸é ±× ÇÁ·Î¼¼½º´Â ½ÇÇàÁßÀÌ ¾Æ´Ô. then echo "¿¬°áÁßÀÌ ¾Æ´Õ´Ï´Ù." exit $NOTCONNECTED else echo "¿¬°áÁßÀÔ´Ï´Ù."; echo fi while [ true ] # ¹«ÇÑ ·çÇÁ, ÀÌ ºÎºÐÀº Á» ´õ °³¼±µÉ ¼ö ÀÖ½À´Ï´Ù. do if [ ! -e "/proc/$pidno/$PROCFILENAME" ] # ÇÁ·Î¼¼½º°¡ ½ÇÇàÁßÀ̸é, "status" ÆÄÀϵµ Á¸ÀçÇÕ´Ï´Ù. then echo "¿¬°áÀÌ ²÷¾îÁ³½À´Ï´Ù." exit $NOTCONNECTED fi netstat -s | grep "packets received" # ¸î °¡Áö Á¢¼Ó Åë°è. netstat -s | grep "packets delivered" sleep $INTERVAL echo; echo done exit 0 # ÀÌ ½ºÅ©¸³Æ®´Â Control-C ·Î¸¸ ³¡³¾ ¼ö ÀÖ½À´Ï´Ù. # µ¶ÀÚµéÀ» À§ÇÑ ¿¬½À¹®Á¦: # "q"¸¦ ´·¶À» ¶§ Á¾·áÇϵµ·Ï °³¼±½ÃÄÑ º¸¼¼¿ä. # »ç¿ëÀÚ°¡ Á» ´õ ¾²±â ÁÁ°Ô(user-friendly) ¸¸µé¾î º¸¼¼¿ä. |
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º¸Åë, /proc ¹Ø¿¡ ÀÖ´Â ÆÄÀÏ¿¡ ¾²±â¸¦ Çϸé, ÆÄÀÏ ½Ã½ºÅÛÀ» ¼Õ»ó ½Ãų ¼öµµ ÀÖ°í ½Ã½ºÅÛÀ» ¸Á°¡Æ®¸± ¼öµµ Àֱ⠶§¹®¿¡ À§ÇèÇÕ´Ï´Ù. |
[1] | procinfo, free, vmstat, lsdev, uptime °°Àº ¸í·É¾îµéÀÌ ÀÌ·¸°Ô µ¿ÀÛÇÕ´Ï´Ù. |