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How to avoid grep command finding commented out strings in the source file?

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.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

3

I am running a software where I want to check if miniconda is already installed. Therefore I've checked whether 'miniconda' or 'anaconda' strings in .bashrc file using the grep command. However, it also finds either of above strings which are commented out in the .bashrc file, which I do not want to have. How do I fix this? Relevant part of my bashscript looks as follows.

#Finding if miniconda or anaconda string is in bashrc 
if grep -qF -e miniconda -e anaconda "$HOME"/.bashrc ;then 
 echo "miniconda is found in .bashrc"

I've tested this by adding following lines in the .bashrc file.

#anaconda
#miniconda 

Terminal Output

jen@scs400:/scratch$ source bash_script.sh 
miniconda is found in .bashrc

scripts grep

share|improve this question

edited Apr 29 at 17:50

αғsнιη

25.1k23100162

asked Apr 29 at 16:44

JennyJenny

1189

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  grep -E '(ana|mini)conda' .bashrc.
  
  – Videonauth
  Apr 29 at 16:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Videonauth: Thanks it works! But could you please explain why this works?
  
  – Jenny
  Apr 29 at 17:03
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Videonauth I don't see how that excludes commented lines - doesn't it need some kind of anchor like ^[^#]*(ana|mini)conda?
  
  – steeldriver
  Apr 29 at 17:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @steeldriver it doesn't this was just a wild shot in the dark, feel freee to write an exhausting answer if you like.
  
  – Videonauth
  Apr 29 at 17:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Your check for "miniconda is already installed" is incorrect/incomplete. Some users want to switch in and out of miniconda use, and keep the code to do this elsewhere. Some users source, or ., other files from within ~/.bashrc,
  
  – waltinator
  Apr 29 at 20:00
  

  
  
  
  

 | 
show 1 more comment

3

I am running a software where I want to check if miniconda is already installed. Therefore I've checked whether 'miniconda' or 'anaconda' strings in .bashrc file using the grep command. However, it also finds either of above strings which are commented out in the .bashrc file, which I do not want to have. How do I fix this? Relevant part of my bashscript looks as follows.

#Finding if miniconda or anaconda string is in bashrc 
if grep -qF -e miniconda -e anaconda "$HOME"/.bashrc ;then 
 echo "miniconda is found in .bashrc"

I've tested this by adding following lines in the .bashrc file.

#anaconda
#miniconda 

Terminal Output

jen@scs400:/scratch$ source bash_script.sh 
miniconda is found in .bashrc

scripts grep

share|improve this question

edited Apr 29 at 17:50

αғsнιη

25.1k23100162

asked Apr 29 at 16:44

JennyJenny

1189

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  grep -E '(ana|mini)conda' .bashrc.
  
  – Videonauth
  Apr 29 at 16:54
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Videonauth: Thanks it works! But could you please explain why this works?
  
  – Jenny
  Apr 29 at 17:03
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @Videonauth I don't see how that excludes commented lines - doesn't it need some kind of anchor like ^[^#]*(ana|mini)conda?
  
  – steeldriver
  Apr 29 at 17:09
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @steeldriver it doesn't this was just a wild shot in the dark, feel freee to write an exhausting answer if you like.
  
  – Videonauth
  Apr 29 at 17:12
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Your check for "miniconda is already installed" is incorrect/incomplete. Some users want to switch in and out of miniconda use, and keep the code to do this elsewhere. Some users source, or ., other files from within ~/.bashrc,
  
  – waltinator
  Apr 29 at 20:00
  

  
  
  
  

 | 
show 1 more comment

I am running a software where I want to check if miniconda is already installed. Therefore I've checked whether 'miniconda' or 'anaconda' strings in .bashrc file using the grep command. However, it also finds either of above strings which are commented out in the .bashrc file, which I do not want to have. How do I fix this? Relevant part of my bashscript looks as follows.

#Finding if miniconda or anaconda string is in bashrc 
if grep -qF -e miniconda -e anaconda "$HOME"/.bashrc ;then 
 echo "miniconda is found in .bashrc"

I've tested this by adding following lines in the .bashrc file.

#anaconda
#miniconda 

Terminal Output

jen@scs400:/scratch$ source bash_script.sh 
miniconda is found in .bashrc

scripts grep

share|improve this question

edited Apr 29 at 17:50

αғsнιη

25.1k23100162

asked Apr 29 at 16:44

JennyJenny

1189

#Finding if miniconda or anaconda string is in bashrc 
if grep -qF -e miniconda -e anaconda "$HOME"/.bashrc ;then 
 echo "miniconda is found in .bashrc"

#anaconda
#miniconda 

jen@scs400:/scratch$ source bash_script.sh 
miniconda is found in .bashrc

share|improve this question

edited Apr 29 at 17:50

αғsнιη

25.1k23100162

asked Apr 29 at 16:44

JennyJenny

1189

share|improve this question

edited Apr 29 at 17:50

αғsнιη

25.1k23100162

asked Apr 29 at 16:44

JennyJenny

1189

edited Apr 29 at 17:50

αғsнιη

25.1k23100162

edited Apr 29 at 17:50

αғsнιη

25.1k23100162

asked Apr 29 at 16:44

JennyJenny

1189

asked Apr 29 at 16:44

JennyJenny

1189

1 Answer
1

active

oldest

votes

6

Try this:

if grep -qwE '^[^#]*(ana|mini)conda' "$HOME"/.bashrc ;then
 echo "miniconda/anaconda is found in .bashrc"
fi

share|improve this answer

edited Apr 29 at 17:27

αғsнιη

25.1k23100162

answered Apr 29 at 17:15

ComarComar

4718

New contributor

Comar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note this won't work reliably, because # can appear as a non-comment character as well.. For example: search_string='#[0-9]+.* anaconda' . Or if [ "$1" -eq 3 ]; then echo "Arg #1 triggered change of target (value was 3)"; target="#$anaconda"; fi. Or even source '~/#scripts/.anaconda' (or for extremophiles, a shebang I guess: #!/bin/anaconda, or some compiler preprocessor directive marked with a '#' ?!). The OP will have to consider whether such statements are likely to be an issue, though. If it's an issue, your best bet is to detect/filter out static strings using a few chained sed
  
  – Stilez
  Apr 29 at 21:46
  
  

  
  
  
  

add a comment | 

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6

Try this:

if grep -qwE '^[^#]*(ana|mini)conda' "$HOME"/.bashrc ;then
 echo "miniconda/anaconda is found in .bashrc"
fi

share|improve this answer

edited Apr 29 at 17:27

αғsнιη

25.1k23100162

answered Apr 29 at 17:15

ComarComar

4718

New contributor

Comar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note this won't work reliably, because # can appear as a non-comment character as well.. For example: search_string='#[0-9]+.* anaconda' . Or if [ "$1" -eq 3 ]; then echo "Arg #1 triggered change of target (value was 3)"; target="#$anaconda"; fi. Or even source '~/#scripts/.anaconda' (or for extremophiles, a shebang I guess: #!/bin/anaconda, or some compiler preprocessor directive marked with a '#' ?!). The OP will have to consider whether such statements are likely to be an issue, though. If it's an issue, your best bet is to detect/filter out static strings using a few chained sed
  
  – Stilez
  Apr 29 at 21:46
  
  

  
  
  
  

add a comment | 

6

Try this:

if grep -qwE '^[^#]*(ana|mini)conda' "$HOME"/.bashrc ;then
 echo "miniconda/anaconda is found in .bashrc"
fi

share|improve this answer

edited Apr 29 at 17:27

αғsнιη

25.1k23100162

answered Apr 29 at 17:15

ComarComar

4718

New contributor

Comar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Note this won't work reliably, because # can appear as a non-comment character as well.. For example: search_string='#[0-9]+.* anaconda' . Or if [ "$1" -eq 3 ]; then echo "Arg #1 triggered change of target (value was 3)"; target="#$anaconda"; fi. Or even source '~/#scripts/.anaconda' (or for extremophiles, a shebang I guess: #!/bin/anaconda, or some compiler preprocessor directive marked with a '#' ?!). The OP will have to consider whether such statements are likely to be an issue, though. If it's an issue, your best bet is to detect/filter out static strings using a few chained sed
  
  – Stilez
  Apr 29 at 21:46
  
  

  
  
  
  

add a comment | 

Try this:

if grep -qwE '^[^#]*(ana|mini)conda' "$HOME"/.bashrc ;then
 echo "miniconda/anaconda is found in .bashrc"
fi

share|improve this answer

edited Apr 29 at 17:27

αғsнιη

25.1k23100162

answered Apr 29 at 17:15

ComarComar

4718

New contributor

Comar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

if grep -qwE '^[^#]*(ana|mini)conda' "$HOME"/.bashrc ;then
 echo "miniconda/anaconda is found in .bashrc"
fi

share|improve this answer

edited Apr 29 at 17:27

αғsнιη

25.1k23100162

answered Apr 29 at 17:15

ComarComar

4718

New contributor

Comar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited Apr 29 at 17:27

αғsнιη

25.1k23100162

edited Apr 29 at 17:27

αғsнιη

25.1k23100162

answered Apr 29 at 17:15

ComarComar

4718

New contributor

Comar is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered Apr 29 at 17:15

ComarComar

4718