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Linux tr to convert vertical text to horizontal

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2

I've been reading about https://stackoverflow.com/questions/39791042/convert-vertical-text-into-horizontal-in-shell
and wondering if tr alone can be used to convert vertical text to horizontal.

user@linux:~$ seq 3
1
2
3
user@linux:~$ 

I've tried the following solution, it works but not perfect.

user@linux:~$ seq 3 | tr -d 'n'
123user@linux:~$ 
user@linux:~$ 

Would it be possible to used tr alone to produce output like this?

Desired Output

user@linux:~$ seq 3 | tr command here
123
user@linux:~$ 

linux tr

share|improve this question

asked May 31 at 12:01

SabrinaSabrina

333110

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  tr -d 'n' is finr for all piped and file-to-file operations. Don't be fooled by the tty output.
  
  – Fiximan
  May 31 at 12:28
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Fiximan no it's not. Otherwise the following would work as expected: seq 3 | tr -d 'n' | cat. Notice the pipe to cat here, which didn't add the newline as the OP wanted (and which POSIX text files are required to have).
  
  – Ruslan
  May 31 at 20:58
  
  

  
  
  
  

add a comment | 

2

I've been reading about https://stackoverflow.com/questions/39791042/convert-vertical-text-into-horizontal-in-shell
and wondering if tr alone can be used to convert vertical text to horizontal.

user@linux:~$ seq 3
1
2
3
user@linux:~$ 

I've tried the following solution, it works but not perfect.

user@linux:~$ seq 3 | tr -d 'n'
123user@linux:~$ 
user@linux:~$ 

Would it be possible to used tr alone to produce output like this?

Desired Output

user@linux:~$ seq 3 | tr command here
123
user@linux:~$ 

linux tr

share|improve this question

asked May 31 at 12:01

SabrinaSabrina

333110

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  tr -d 'n' is finr for all piped and file-to-file operations. Don't be fooled by the tty output.
  
  – Fiximan
  May 31 at 12:28
  
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Fiximan no it's not. Otherwise the following would work as expected: seq 3 | tr -d 'n' | cat. Notice the pipe to cat here, which didn't add the newline as the OP wanted (and which POSIX text files are required to have).
  
  – Ruslan
  May 31 at 20:58
  
  

  
  
  
  

add a comment | 

I've been reading about https://stackoverflow.com/questions/39791042/convert-vertical-text-into-horizontal-in-shell
and wondering if tr alone can be used to convert vertical text to horizontal.

user@linux:~$ seq 3
1
2
3
user@linux:~$ 

I've tried the following solution, it works but not perfect.

user@linux:~$ seq 3 | tr -d 'n'
123user@linux:~$ 
user@linux:~$ 

Would it be possible to used tr alone to produce output like this?

Desired Output

user@linux:~$ seq 3 | tr command here
123
user@linux:~$ 

linux tr

share|improve this question

asked May 31 at 12:01

SabrinaSabrina

333110

user@linux:~$ seq 3
1
2
3
user@linux:~$ 

user@linux:~$ seq 3 | tr -d 'n'
123user@linux:~$ 
user@linux:~$ 

user@linux:~$ seq 3 | tr command here
123
user@linux:~$ 

share|improve this question

asked May 31 at 12:01

SabrinaSabrina

333110

share|improve this question

asked May 31 at 12:01

SabrinaSabrina

333110

asked May 31 at 12:01

SabrinaSabrina

333110

asked May 31 at 12:01

SabrinaSabrina

333110

6 Answers
6

active

oldest

votes

8

Choose whatever works for you.

$ seq 3 | paste -s -d ''
123
$ seq 3 | tr -d 'n';echo
123
$ seq 3 | awk 1 ORS='';echo
123

share|improve this answer

edited May 31 at 22:38

jwodder

194111

answered May 31 at 12:48

asktyagiasktyagi

5459

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note that paste -s -d '' is not portable nor POSIX. The portable equivalent would be paste -sd '' -
  
  – Stéphane Chazelas
  Jun 1 at 10:55
  

  
  
  
  

add a comment | 

4

$ seq -s '' 3
123

This instructs seq to use the empty string as separator for the numbers (rather than the default newline character).

share|improve this answer

answered May 31 at 12:39

Kusalananda♦Kusalananda

151k18290477

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Nice. Didn't know about this. What if the vertical text is saved in a file instead of seq 3?
  
  – Sabrina
  May 31 at 12:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sabrina Then you would use any of the alternatives in asktyagi's answer.
  
  – Kusalananda♦
  May 31 at 13:03
  

  
  
  
  

add a comment | 

2

Try this,

 seq 3 | paste -s -d ''
 123

• -d, delimiters as null


• -s, print in serial instead of in parallel

share|improve this answer

answered May 31 at 12:06

msp9011msp9011

5,09044269

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So it's not possible to use tr alone to solve this?
  
  – Sabrina
  May 31 at 12:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note that paste -s -d '' is not portable nor POSIX. The portable equivalent would be paste -sd '' -
  
  – Stéphane Chazelas
  Jun 1 at 10:55
  

  
  
  
  

add a comment | 

2

A solution could be

echo $(seq 3 | tr -d 'n')

As you are removing all newlines with switch -d 'n' you have to add the last one again with some sort of trick.

share|improve this answer

edited Jun 1 at 1:45

muru

39.6k595171

answered May 31 at 12:21

Frank AutenriethFrank Autenrieth

212

add a comment | 

2

You could use two tr commands and some shell features (a shell built-in, and a here-string or here-doc):

seq 3 | (tr -d 'n'; tr -s 'n' <<< "")

seq 3 | (tr -d 'n'; tr -s 'n' << EOF

EOF
)

share|improve this answer

edited Jun 1 at 11:05

answered May 31 at 19:01

Jeff Schaller♦Jeff Schaller

47k1167152

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You might as well use tr -s 'n' <<< '' or tr x y <<< ''
  
  – Stéphane Chazelas
  Jun 1 at 10:58
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Good point, Stéphane; I got stuck initially trying to convert /dev/null or /dev/zero; I'll simplify it with your suggestion. Thank you!
  
  – Jeff Schaller♦
  Jun 1 at 11:02
  

  
  
  
  

add a comment | 

0

Tried with below 2 methods

First method

command:

seq 3| perl -pne "s/n//g"

output
123

Second(Python)

!/usr/bin/python

import re
z=[]
import subprocess
k=open('o','r')
for i in k:
 z.append(i.strip())

print "".join(z)

Note: Here o is the filename

output

@host-1-49 ~]# python o.py 
123

share|improve this answer

answered Jun 1 at 8:54

Praveen Kumar BSPraveen Kumar BS

2,0962311

add a comment | 

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8

Choose whatever works for you.

$ seq 3 | paste -s -d ''
123
$ seq 3 | tr -d 'n';echo
123
$ seq 3 | awk 1 ORS='';echo
123

share|improve this answer

edited May 31 at 22:38

jwodder

194111

answered May 31 at 12:48

asktyagiasktyagi

5459

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note that paste -s -d '' is not portable nor POSIX. The portable equivalent would be paste -sd '' -
  
  – Stéphane Chazelas
  Jun 1 at 10:55
  

  
  
  
  

add a comment | 

8

Choose whatever works for you.

$ seq 3 | paste -s -d ''
123
$ seq 3 | tr -d 'n';echo
123
$ seq 3 | awk 1 ORS='';echo
123

share|improve this answer

edited May 31 at 22:38

jwodder

194111

answered May 31 at 12:48

asktyagiasktyagi

5459

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note that paste -s -d '' is not portable nor POSIX. The portable equivalent would be paste -sd '' -
  
  – Stéphane Chazelas
  Jun 1 at 10:55
  

  
  
  
  

add a comment | 

Choose whatever works for you.

$ seq 3 | paste -s -d ''
123
$ seq 3 | tr -d 'n';echo
123
$ seq 3 | awk 1 ORS='';echo
123

share|improve this answer

edited May 31 at 22:38

jwodder

194111

answered May 31 at 12:48

asktyagiasktyagi

5459

$ seq 3 | paste -s -d ''
123
$ seq 3 | tr -d 'n';echo
123
$ seq 3 | awk 1 ORS='';echo
123

share|improve this answer

edited May 31 at 22:38

jwodder

194111

answered May 31 at 12:48

asktyagiasktyagi

5459

edited May 31 at 22:38

jwodder

194111

edited May 31 at 22:38

jwodder

194111

answered May 31 at 12:48

asktyagiasktyagi

5459

answered May 31 at 12:48

asktyagiasktyagi

5459

4

$ seq -s '' 3
123

This instructs seq to use the empty string as separator for the numbers (rather than the default newline character).

share|improve this answer

answered May 31 at 12:39

Kusalananda♦Kusalananda

151k18290477

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Nice. Didn't know about this. What if the vertical text is saved in a file instead of seq 3?
  
  – Sabrina
  May 31 at 12:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sabrina Then you would use any of the alternatives in asktyagi's answer.
  
  – Kusalananda♦
  May 31 at 13:03
  

  
  
  
  

add a comment | 

4

$ seq -s '' 3
123

This instructs seq to use the empty string as separator for the numbers (rather than the default newline character).

share|improve this answer

answered May 31 at 12:39

Kusalananda♦Kusalananda

151k18290477

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Nice. Didn't know about this. What if the vertical text is saved in a file instead of seq 3?
  
  – Sabrina
  May 31 at 12:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sabrina Then you would use any of the alternatives in asktyagi's answer.
  
  – Kusalananda♦
  May 31 at 13:03
  

  
  
  
  

add a comment | 

$ seq -s '' 3
123

This instructs seq to use the empty string as separator for the numbers (rather than the default newline character).

share|improve this answer

answered May 31 at 12:39

Kusalananda♦Kusalananda

151k18290477

$ seq -s '' 3
123

share|improve this answer

answered May 31 at 12:39

Kusalananda♦Kusalananda

151k18290477

answered May 31 at 12:39

Kusalananda♦Kusalananda

151k18290477

answered May 31 at 12:39

Kusalananda♦Kusalananda

151k18290477

2

Try this,

 seq 3 | paste -s -d ''
 123

• -d, delimiters as null


• -s, print in serial instead of in parallel

share|improve this answer

answered May 31 at 12:06

msp9011msp9011

5,09044269

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So it's not possible to use tr alone to solve this?
  
  – Sabrina
  May 31 at 12:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note that paste -s -d '' is not portable nor POSIX. The portable equivalent would be paste -sd '' -
  
  – Stéphane Chazelas
  Jun 1 at 10:55
  

  
  
  
  

add a comment | 

2

Try this,

 seq 3 | paste -s -d ''
 123

• -d, delimiters as null


• -s, print in serial instead of in parallel

share|improve this answer

answered May 31 at 12:06

msp9011msp9011

5,09044269

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  So it's not possible to use tr alone to solve this?
  
  – Sabrina
  May 31 at 12:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note that paste -s -d '' is not portable nor POSIX. The portable equivalent would be paste -sd '' -
  
  – Stéphane Chazelas
  Jun 1 at 10:55
  

  
  
  
  

add a comment | 

Try this,

 seq 3 | paste -s -d ''
 123

• -d, delimiters as null


• -s, print in serial instead of in parallel

share|improve this answer

answered May 31 at 12:06

msp9011msp9011

5,09044269

 seq 3 | paste -s -d ''
 123

share|improve this answer

answered May 31 at 12:06

msp9011msp9011

5,09044269

answered May 31 at 12:06

msp9011msp9011

5,09044269

answered May 31 at 12:06

msp9011msp9011

5,09044269

2

A solution could be

echo $(seq 3 | tr -d 'n')

As you are removing all newlines with switch -d 'n' you have to add the last one again with some sort of trick.

share|improve this answer

edited Jun 1 at 1:45

muru

39.6k595171

answered May 31 at 12:21

Frank AutenriethFrank Autenrieth

212

add a comment | 

2

A solution could be

echo $(seq 3 | tr -d 'n')

As you are removing all newlines with switch -d 'n' you have to add the last one again with some sort of trick.

share|improve this answer

edited Jun 1 at 1:45

muru

39.6k595171

answered May 31 at 12:21

Frank AutenriethFrank Autenrieth

212

add a comment | 

A solution could be

echo $(seq 3 | tr -d 'n')

As you are removing all newlines with switch -d 'n' you have to add the last one again with some sort of trick.

share|improve this answer

edited Jun 1 at 1:45

muru

39.6k595171

answered May 31 at 12:21

Frank AutenriethFrank Autenrieth

212

echo $(seq 3 | tr -d 'n')

share|improve this answer

edited Jun 1 at 1:45

muru

39.6k595171

answered May 31 at 12:21

Frank AutenriethFrank Autenrieth

212

edited Jun 1 at 1:45

muru

39.6k595171

edited Jun 1 at 1:45

muru

39.6k595171

answered May 31 at 12:21

Frank AutenriethFrank Autenrieth

212

answered May 31 at 12:21

Frank AutenriethFrank Autenrieth

212

2

You could use two tr commands and some shell features (a shell built-in, and a here-string or here-doc):

seq 3 | (tr -d 'n'; tr -s 'n' <<< "")

seq 3 | (tr -d 'n'; tr -s 'n' << EOF

EOF
)

share|improve this answer

edited Jun 1 at 11:05

answered May 31 at 19:01

Jeff Schaller♦Jeff Schaller

47k1167152

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You might as well use tr -s 'n' <<< '' or tr x y <<< ''
  
  – Stéphane Chazelas
  Jun 1 at 10:58
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Good point, Stéphane; I got stuck initially trying to convert /dev/null or /dev/zero; I'll simplify it with your suggestion. Thank you!
  
  – Jeff Schaller♦
  Jun 1 at 11:02
  

  
  
  
  

add a comment | 

2

You could use two tr commands and some shell features (a shell built-in, and a here-string or here-doc):

seq 3 | (tr -d 'n'; tr -s 'n' <<< "")

seq 3 | (tr -d 'n'; tr -s 'n' << EOF

EOF
)

share|improve this answer

edited Jun 1 at 11:05

answered May 31 at 19:01

Jeff Schaller♦Jeff Schaller

47k1167152

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You might as well use tr -s 'n' <<< '' or tr x y <<< ''
  
  – Stéphane Chazelas
  Jun 1 at 10:58
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Good point, Stéphane; I got stuck initially trying to convert /dev/null or /dev/zero; I'll simplify it with your suggestion. Thank you!
  
  – Jeff Schaller♦
  Jun 1 at 11:02
  

  
  
  
  

add a comment | 

You could use two tr commands and some shell features (a shell built-in, and a here-string or here-doc):

seq 3 | (tr -d 'n'; tr -s 'n' <<< "")

seq 3 | (tr -d 'n'; tr -s 'n' << EOF

EOF
)

share|improve this answer

edited Jun 1 at 11:05

answered May 31 at 19:01

Jeff Schaller♦Jeff Schaller

47k1167152

seq 3 | (tr -d 'n'; tr -s 'n' <<< "")

seq 3 | (tr -d 'n'; tr -s 'n' << EOF

EOF
)

share|improve this answer

edited Jun 1 at 11:05

answered May 31 at 19:01

Jeff Schaller♦Jeff Schaller

47k1167152

answered May 31 at 19:01

Jeff Schaller♦Jeff Schaller

47k1167152

answered May 31 at 19:01

Jeff Schaller♦Jeff Schaller

47k1167152

0

Tried with below 2 methods

First method

command:

seq 3| perl -pne "s/n//g"

output
123

Second(Python)

!/usr/bin/python

import re
z=[]
import subprocess
k=open('o','r')
for i in k:
 z.append(i.strip())

print "".join(z)

Note: Here o is the filename

output

@host-1-49 ~]# python o.py 
123

share|improve this answer

answered Jun 1 at 8:54

Praveen Kumar BSPraveen Kumar BS

2,0962311

add a comment | 

0

Tried with below 2 methods

First method

command:

seq 3| perl -pne "s/n//g"

output
123

Second(Python)

!/usr/bin/python

import re
z=[]
import subprocess
k=open('o','r')
for i in k:
 z.append(i.strip())

print "".join(z)

Note: Here o is the filename

output

@host-1-49 ~]# python o.py 
123

share|improve this answer

answered Jun 1 at 8:54

Praveen Kumar BSPraveen Kumar BS

2,0962311

add a comment | 

Tried with below 2 methods

First method

command:

seq 3| perl -pne "s/n//g"

output
123

Second(Python)

!/usr/bin/python

import re
z=[]
import subprocess
k=open('o','r')
for i in k:
 z.append(i.strip())

print "".join(z)

Note: Here o is the filename

output

@host-1-49 ~]# python o.py 
123

share|improve this answer

answered Jun 1 at 8:54

Praveen Kumar BSPraveen Kumar BS

2,0962311

seq 3| perl -pne "s/n//g"

import re
z=[]
import subprocess
k=open('o','r')
for i in k:
 z.append(i.strip())

print "".join(z)

@host-1-49 ~]# python o.py 
123

share|improve this answer

answered Jun 1 at 8:54

Praveen Kumar BSPraveen Kumar BS

2,0962311

answered Jun 1 at 8:54

Praveen Kumar BSPraveen Kumar BS

2,0962311

answered Jun 1 at 8:54

Praveen Kumar BSPraveen Kumar BS

2,0962311