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# 1  
Old 08-25-2017
Help with replacing a char
Hello All,

I have a file as below . I want to convert the Y with numbers to H

From
Code:
4,
M11,
P2521759,
Y75,Y70,Y105,Y110,Y700,Y815,Y830,Y900,Y162,Y300,
Y291,Y290,Y15,Y20,
MR2716014,MR2617014,
Yesterday,current
1,201012,
102032,1
11112,0

to
Code:
4,
M11,
P2521759,
H75,H70,H105,H110,H700,H815,H830,H900,H162,H300,
H291,H290,H15,H20,
MR2716014,MR2617014,
Yesterday,current
1,201012,
102032,1
11112,0

I tried to do
Code:
sed -i 's/Y/H/g' file

it converted my Yesterday to Hesterday I want to convert only when there is Y followed by integer

Thanks
Moderator's Comments:
Mod Comment Due to repeated failures to properly format posts, this account has been placed in read only mode for a day.
Last edited by Don Cragun; 08-26-2017 at 02:01 AM.. Reason: Change QUOTE tags to CODE tags; remove unneeded blank lines, fix spacing mourned ICODE tags.
# 2  
Old 08-26-2017
Quote:
Originally Posted by arunkumar_mca
Hello All,

I have a file as below . I want to convert the Y with numbers to H

From
Code:
4,
M11,
P2521759,
Y75,Y70,Y105,Y110,Y700,Y815,Y830,Y900,Y162,Y300,
Y291,Y290,Y15,Y20,
MR2716014,MR2617014,
Yesterday,current
1,201012,
102032,1
11112,0

to
Code:
4,
M11,
P2521759,
H75,H70,H105,H110,H700,H815,H830,H900,H162,H300,
H291,H290,H15,H20,
MR2716014,MR2617014,
Yesterday,current
1,201012,
102032,1
11112,0

I tried to do
Code:
sed -i 's/Y/H/g' file

it converted my Yesterday to Hesterday I want to convert only when there is Y followed by integer

Thanks
Moderator's Comments:
Mod Comment Due to repeated failures to properly format posts, this account has been placed in read only mode for a day.
As you well know, it always helps to know what operating system and shell you're using when you ask questions in this forum. Assuming that the sed on your system conforms to POSIX Standard requirements (which is not true by default on Linux systems), you could try:
Code:
sed 's/Y\([0-9]\)/H\1/g' file

If this doesn't work on your system, please tell us what operating system you're using (including the version number).
This User Gave Thanks to Don Cragun For This Post:
arunkumar_mca
# 3  
Old 08-26-2017
Hello arunkumar_mca,

Could you please try following too and let me know if this helps you.
Code:
awk -F, '{for(i=1;i<=NF;i++){if($i ~ /Y[0-9]+/){sub(/Y/,"H",$i)}}} 1' OFS=,   Input_file

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
arunkumar_mca
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