Categories
System/Linux/Unix*

[memo] 用 shell awk 加總 column

ls -l `find /mnt/tslog/archive/ -name “*20190[1..6]*” -type f` | awk ‘{sum += $5} END {print sum}’ 160038650315 ls -l `find /mnt/tslog_bak -name “*20190[1..6]*” -type f` | awk ‘{sum += $5} END {print sum}’ 160038650315 ls -l `find /mnt/tslog_backup2 -name “*20190[1..6]*” -type f` | awk ‘{sum += $5} END {print sum}’ 160038650315

Categories
DATABASE System/Linux/Unix*

Trace 某 Linux process 的 環境變數 environ

Lazy 的 apache 有作這個設定  export NLS_NAME=”American_Taiwan.UTF8″       838  cd /proc/     840  ps auwwx|grep apache <– 找一個 apache 的 process id , ex: 21192   841  cd 21192   843  cat environ <– 把環境變數列出來   .

Categories
JOB Programming/C System/Linux/Unix*

get my ip address useing c / sample code

C CODE /* FILENAME : my_local_ip.c */ #include #include #include #include #include #include #include #include int main(int argc, char **argv) { int s; struct sockaddr_in sin; int slen; int port; if( argc<3 ) { printf(“Usage: %s \n”, argv[0]); printf(“\n\tsample %s 203.66.88.89 80\n”,argv[0]); return -1; } port = atoi(argv[2]); s = socket(PF_INET, SOCK_STREAM, 0); memset(&sin, 0, […]

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Copy_N_Paste System/Linux/Unix*

unix shell programming / sh / csh syntax

Shell script syntax Bourne shell (sh) syntax samples test: [ number -lt|-le|-eq|-ne|-ge|-gt number ] [ string = != string ] if [ test ] then commands elif [ test ] commands else commands fi for var in item1 item2 item3 do commands done while test do commands done case expression in case1) commands ;; case2|case3) […]

Categories
System/Linux/Unix*

UTF8 / BIG5 / PUTTY / SHELL / SCREEN 真難搞系列

因為工作上都要改成 UTF8 , 所以很多以前熟悉的工具都要作一番改變 , 於是順手記在這邊 , 免得又忘記了. 我的 .screenrc caption always “%-Lw%{= BW}%50>%n%f* %t%{-}%+Lw%<” bind b encoding big5 utf8 bind u encoding utf8 big5 我的 .bashrc EDITOR=”/usr/bin/vim” 我的 putty setting