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AWK Script Issue insert newline for a regular expression match

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Top Forums Shell Programming and Scripting AWK Script Issue insert newline for a regular expression match
# 29  
Old 11-30-2010
Network Awk script issue : range of regular expression
Thanks Ctgsnb ,

I tried below code and it also worked well

sed -e 's/\(^ *pin[^ ]*\)/#\1/g' ro.lib | tr '#' '\n' > temp1

Now I am having issue with range of the regular patterns to be matched

For example having a file like this

Code:
 
File1
 
##############
 
pin RXA {
input 
output 
}
 
pin RXB {
input 
output 
}
 
pin RXC {
input 
output 
}
 
pin RXD {
input 
output 
}
 
pin RXE {
input 
output 
}
 
pin RXF {
input 
output 
}

Now I need to match range of the regular expression like RXB to RXE and delete their corresponding blocks

Code:
 
Output 
 
pin RXA {
input 
output 
}
 
pin RXF {
input 
output 
}

I tried to use below script
Code:
sed -e '/RXB/,/RXE/d'

but will not delete the whole content of the RXE Block till RXE Regular expression line it will match and input , output and } will remain as it is

One way is to Remove the black lines between blocks of RXB to RXE
like this
Code:
 
input
 
pin RXA {
input 
output 
}
 
pin RXB {
input 
output 
}
 pin RXC {
input 
output 
}
 pin RXD {
input 
output 
}
 pin RXE {
input 
output 
}
 
pin RXF {
input 
output 
}

and use the script

Code:
 
sed -e '/RXB/,/^$/d' input

but how to do that in both the situations for matching with range of regular expression and deleting the blank lines for the range of regular expression matches
# 30  
Old 11-30-2010
Code:
sed '/RX[BE]/,/^ *$/d' in

Code:
# sed '/RX[BE]/,/^ *$/d' in
pin RXA {
input
output
}

pin RXC {
input
output
}

pin RXD {
input
output
}

pin RXF {
input
output
}
#

This User Gave Thanks to ctsgnb For This Post:
jaita
# 31  
Old 11-30-2010
Hi Ctgsnb ,

Thanks for the reply

but I want to delete chunk of Blocks from a range of Regular expression RXB to RXE

Reframing the code again

Code:
 
pin RXA {
input 
output 
}

pin RXTRY {
input 
output 
}
pin TXCRY {
input 
output 
}
pin BXDRY {
input 
output 
}
pin MTRE {
input 
output 
}

pin RXF {
input 
output 
}

Matching the regular expression from range RXTRY to MTRE and delete the blocks

Output

Code:
 
pin RXA {
input 
output 
}

pin RXF {
input 
output 
}

Thanks
Jaita
# 32  
Old 11-30-2010
Code:
sed '/RX[B-E]/,/^ *$/d' in

Code:
# sed '/RX[B-E]/,/^ *$/d' in
pin RXA {
input
output
}

pin RXF {
input
output
}

# 33  
Old 11-30-2010
Network awk script issue
Hi

I tried this one to the below code but here it is deleting everything

Code

Code:
 
pin RX_R_01 {
input 
output 
}
 
pin RX_R_02 {
input 
output 
}
 
pin RX_R_03 {
input 
output 
}
 
pin RX_R_04 {
input 
output 
}
 
pin RX_R_05 {
input 
output 
}
 
pin RX_R_06 {
input 
output 
}


Script

Code:
 
sed '/RX_[R_02-R_05]/,/^ *$/d' input

Wanted to delete the Block from RX_R_02 to RX_R_5

to give out the output

Output
Code:
 
 
pin RX_R_01 {
input 
output 
}

pin RX_R_06 {
input 
output 
}

but I am getting empty file , it is deleting everything
# 34  
Old 11-30-2010
Code:
sed '/RX_R_0[2-5]/,/^ *$/d' input

# 35  
Old 12-02-2010
Franklin ,
Your code is not clear to me

Code:
 
awk '/RXH/{f=1}; f{c+=/}/?1:/{/?-1:0}; !f; f && !c{f=0}' file

Could not understand how the flags will be set , unset and counter will be incremented and decremented

Suppose I am having a file like this
Code:
 
 
FILE 1
 pin ykdh {
 ndn ndn 
 hdjhd jd 
 } 
 pin rtrx {
 in nmd
 mdkd kd
 }
 pin rtry {
 im dnd
 dnd mdmd
}
 pin hdh {
 ndn ndn 
 hdjhd jd 
 }
and I am applying the below script 
awk '/rxt/{f=1}; f{c+=/}/?1:/{/?-1:0}; !f; f && !c{f=0}' file
it is giving me a right output 
output 
pin ykdh {
 ndn ndn 
 hdjhd jd 
 } 
pin hdh {
 ndn ndn 
 hdjhd jd 
 }

But if I am changing a small parameter in the FILE1 { to ]

Code:
 
FILE2 
pin ykdh [
 ndn ndn 
 hdjhd jd 
 ] 
 pin rtrx [
 in nmd
 mdkd kd
 ]
 pin rtry [
 im dnd
 dnd mdmd
]
 pin hdh [
 ndn ndn 
 hdjhd jd 
 ]

and applying below script

Code:
 
awk '/rxt/{f=1}; f{c+=/]/?1:/[/?-1:0}; !f; f && !c{f=0}' file

it is not giving the output and script getting failed
Could not understand the script as such ,
after matching with the regular expression rxt f is getting set and assigned to value = 1
after that could not able to understand the code
Code:
f{c+=/]/?1:/[/?-1:0}; !f; f && !c{f=0}

' setting and unsetting of the flags , incrementing and decrementing
the counters and prining the relevant lines
Please make me understand this code , how it works

Thanks
Jaita
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