awk小技巧之執行shell命令
阿新 • • 發佈：2021-09-04
方法一：system函式
方法二：使用變數（獲取變數的時候已經執行命令）
ls |awk '{print i$0}' i=`pwd`'/'
或
[root@rac1 ~]# ls -a |awk '{print i$0}' i="`pwd`/"注意：這裡的雙引號不可以用單引號替換，單引號內強制為字串-不執行引號內的命令。
[root@rac1 ~]# ls -a |awk -v i="`pwd`/" '{print i$0}'
方法三：把命令傳遞給bash
方法三的內容延伸：執行多重命令
結合輸出引號和shell命令：
##%分號可以放在雙引號內正常輸出，
| 1 |
ipadd|grepenp0s8|grepinet|awk'{print$2}'|awk-F"/"'{printf$1""}{cmd="hostname";system(cmd)}
|
| 1 |
[root@rac1~]#ls|awk'{printf$NF""}{cmd="hostname";system(cmd)}
|
| 1 2 |
[root@rac1~]#awk'BEGIN{print"echocange"|"bash"}'
cang
|
| 1 2 3 4 5 6 7 |
[root@rac1~]#ls-lh|awk'{print"echocange"|"bash"}'
cange
cange
cange
cange
cange
cang
|
| 1 2 3 4 5 6 7 |
[root@rac1~]#ls-lh|awk'{print"echocange`date+%Y-%m-%d`"}'|bash
cange2021-08-11
cange2021-08-11cange2021-08-11
cange2021-08-11
cange2021-08-11
cange2021-08-1
|
| 1 2 3 4 5 6 7 8 9 |
[root@rac1~]#ls-lh|awk'{print"echocange$(date+%Y-%m-%d)"}'|bash
cange2021-08-11
cange2021-08-11
cange2021-08-11
cange2021-08-11
cange2021-08-11
cange2021-08-11
cange2021-08-11
cange2021-08-11
|
| 1 2 3 4 5 6 7 8 9 10 11 |
[grid@rac1~]$find$ORACLE_BASE/diag/crs/`hostname`/crs/trace/-ctime-1|awk'{print"echo"$0"`stat-c""\"""%X%Y%Z""\""""$0"`"}'|head-n10|bash
/u01/app/grid/diag/crs/rac1/crs/trace/162821114016282111231628211123
/u01/app/grid/diag/crs/rac1/crs/trace/ocssd.trc162815332616282114211628211421
/u01/app/grid/diag/crs/rac1/crs/trace/ocssd.trm162815332616282114211628211421
/u01/app/grid/diag/crs/rac1/crs/trace/octssd.trc162809914916282114101628211410
/u01/app/grid/diag/crs/rac1/crs/trace/octssd.trm162809914916282114101628211410
/u01/app/grid/diag/crs/rac1/crs/trace/ohasd_orarootagent_root.trc162820677116282114211628211421
/u01/app/grid/diag/crs/rac1/crs/trace/crsd_oraagent_grid.trc162804497516282114211628211421
/u01/app/grid/diag/crs/rac1/crs/trace/ohasd.trc162820228616282114191628211419
/u01/app/grid/diag/crs/rac1/crs/trace/crsd.trc162811522316282114141628211414
/u01/app/grid/diag/crs/rac1/crs/trace/crsd_oraagent_oracle.trc16276393171628211417162821141
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