Thought of sharing some useful info which can help you to do your work faster in vi.You can use awk/sed scripts in vi using following command in vi
:%!scriptname
Here the scriptname file should have execute privilges for user. I used this to create a useful script which I was doing by typing multiple substitution command in vi.
e.g Your file contains list of table
$cat t.lst
BANK005 BJSTM BJS_ORG CHAINED_ROWS CORR_BAM CORR_CAM CORR_EIT CORR_GAC CORR_GAM CORR_ITC CORR_LDT CORR_LHT
Create script (quotes) with following command and give execute permission to user.
sed -e “s/^/’/g” -e “s/$/’,/” $1|awk ‘{printf (“%s”,$0)}’|sed -e “s/^/(/g” -e “s/,$/)/g”
open t.lst in vi and type :%!quotes
('BANK005','BJSTM','BJS_ORG','CHAINED_ROWS','CORR_BAM','CORR_CAM','CORR_EIT','CORR_GAC','CORR_GAM','CORR_ITC','CORR_LDT','CORR_LHT')
Similarly if you wish to remove blank lines, have a file blank like
awk ‘!NF==0 {print $0}’ $1
Blank lines can also be directly removed from vi using :g/^$/d
Isn’t it cool.. 🙂
Chris Neumueller
Hi!
It’s a very useful feature to pipe contents of a vi buffer through some unix command. However, vi has powerful text editing commands that nearly equal sed. The command
:%s/.*/’&’/ | 1,$-1s/$/,/ | %j! | 1s/.*/(&)/
does about the same as our quotes script. You can register it as an ex command with
:command Quotes %s/.*/’&’/ | 1,$-1s/$/,/ | %j! | 1s/.*/(&)/
and execute it with
:Quotes
though this probably only makes sense if you store it in your local .vimrc.
Amit
Hi Chris,
Thanks ..It is very cool..I have not seen few of commands like %j!..I would say i really needed it..
Cheers
Amit
Amit
Command :%j! is very useful as it can be used to format the output given by V$SQLTEXT
select sql_text from V$SQLTEXT where sql_id='avv9twxrav4gk' order by piece SQL_TEXT ---------------------------------------------------------------- select decode(bitand(a.flags, 16384), 0, a.next_run_date, a.last_enabled_time), a.obj#, decode(bitand(a.f lags, 16384), 0, 0, 1) from sys.scheduler$_job a where bitand( a.job_status, 3) = 1 and ((bitand(a.flags, 134217728 + 268435 456) = 0) or (bitand(a.job_status, 1024) 0)) and b itand(a.flags, 4096) = 0 and (a.class_oid is null or (a. class_oid is not null and a.class_oid in (select b.obj# fro m sys.scheduler$_class b where b.affini ty is null))) and decode(bitand(a.flags, 16384), 0, a.next_ru n_date, a.last_enabled_time) = (select min(decode (bitand(c.flags, 16384), 0, c.next_run_date, c.last_ enabled_time)) from sys.scheduler$_job c where bitand(c.job_ status, 3) = 1 and ((bitand(c.flags, 134217728 + 268435456) = 0) or (bitand(c.job_status, 1024) 0)) and bita nd(c.flags, 4096) = 0 and (c.class_oid is null or (c.c lass_oid is not null and c.class_oid in (select d.obj# fro m sys.scheduler$_class d where d.affin ity is null))))When you use :%j! it will join line and remove space.
select decode(bitand(a.flags, 16384), 0, a.next_run_date, a.last_enabled_time), a.obj#, decode(bitand(a.flags , 16384), 0, 0, 1) from sys.scheduler$_job a where bitand(a.job_status, 3) = 1 and ((bitand(a.flags, 134217728 + 2684354 56) = 0) or (bitand(a.job_status, 1024) 0)) and bitand(a.flags, 4096) = 0 and (a.class_oid is null or ( a.class_oid is not null and a.class_oid in (select b.obj# from sys.scheduler$_class b where b.a ffinity is null))) and decode(bitand(a.flags, 16384), 0, a.next_run_date, a.last_enabled_time) = (select mi n(decode(bitand(c.flags, 16384), 0, c.next_run_date, c.last_enabled_time)) from sys.scheduler$_job c where bi tand(c.job_status, 3) = 1 and ((bitand(c.flags, 134217728 + 268435456)= 0) or (bitand(c.job_status, 1024) 0)) and bitand(c.flags, 4096) = 0 and (c.class_oid is null or (c.class_oid is not null and c.class_oid in (s elect d.obj# from sys.scheduler$_class d where d.affinity is null))))