Skip already-installed packages in â€œyum installâ€?

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It seems that if a package is already installed, "yum install" will try to update it to the latest version. This will cause "yum install" to fail if the latest version is missing dependencies. I know that I can suppress this with --skip-broken, but I don't want to "skip broken" in case of packages which are not already installed; in that case I want it to fail.

I have seen in this answer that I can do this using an "if" statement if I am installing just one package, but I have a "yum install" statement containing some 15 packages, and don't want to run yum multiple times (once for each package) as this adds a lot of overhead.

How can I get yum to only install packages if they are not already present?

edited Nov 30 '17 at 1:53

asked Nov 29 '17 at 11:18

Kidburla

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How can I get yum to only install packages if they are not already present?

edited Nov 30 '17 at 1:53

asked Nov 29 '17 at 11:18

Kidburla

5551212

add a commentÂ |Â

up vote
1
down vote

favorite

How can I get yum to only install packages if they are not already present?

edited Nov 30 '17 at 1:53

asked Nov 29 '17 at 11:18

Kidburla

5551212

How can I get yum to only install packages if they are not already present?

edited Nov 30 '17 at 1:53

asked Nov 29 '17 at 11:18

Kidburla

5551212

edited Nov 30 '17 at 1:53

asked Nov 29 '17 at 11:18

Kidburla

5551212

asked Nov 29 '17 at 11:18

Kidburla

5551212

asked Nov 29 '17 at 11:18

Kidburla

5551212

add a commentÂ |Â

1 Answer
1

active

oldest

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up vote
2
down vote

In the end I wrote a simple bash script yum-install-if-missing.sh based on other answers. Not sure if there is an easier way.

#!/bin/bash

yumcmd="yum install -y"
for var in "$@"
do
 if ! rpm --quiet --query $var; then
 yumcmd="$yumcmd $var"
 fi
done

echo "ABOUT TO EXECUTE: $yumcmd"

eval $yumcmd

It can then be executed as: yum-install-if-missing.sh packageone packagetwo and so on.

edited Dec 6 '17 at 16:58

answered Nov 29 '17 at 13:51

Kidburla

5551212

2

Use rpm -q --quiet packagename rather than piping to grep.
â€“Â Wildcard
Nov 30 '17 at 2:02

@Wildcard thanks! this really helped me. because I was running yum-install-if-missing.sh ... file ... and while file was not installed, file-libs was installed, so file got skipped. your suggestion fixed this problem
â€“Â Kidburla
Dec 6 '17 at 16:59

add a commentÂ |Â

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1 Answer
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up vote
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down vote

In the end I wrote a simple bash script yum-install-if-missing.sh based on other answers. Not sure if there is an easier way.

#!/bin/bash

yumcmd="yum install -y"
for var in "$@"
do
 if ! rpm --quiet --query $var; then
 yumcmd="$yumcmd $var"
 fi
done

echo "ABOUT TO EXECUTE: $yumcmd"

eval $yumcmd

It can then be executed as: yum-install-if-missing.sh packageone packagetwo and so on.

edited Dec 6 '17 at 16:58

answered Nov 29 '17 at 13:51

Kidburla

5551212

2

Use rpm -q --quiet packagename rather than piping to grep.
â€“Â Wildcard
Nov 30 '17 at 2:02

@Wildcard thanks! this really helped me. because I was running yum-install-if-missing.sh ... file ... and while file was not installed, file-libs was installed, so file got skipped. your suggestion fixed this problem
â€“Â Kidburla
Dec 6 '17 at 16:59

add a commentÂ |Â

up vote
2
down vote

In the end I wrote a simple bash script yum-install-if-missing.sh based on other answers. Not sure if there is an easier way.

#!/bin/bash

yumcmd="yum install -y"
for var in "$@"
do
 if ! rpm --quiet --query $var; then
 yumcmd="$yumcmd $var"
 fi
done

echo "ABOUT TO EXECUTE: $yumcmd"

eval $yumcmd

It can then be executed as: yum-install-if-missing.sh packageone packagetwo and so on.

edited Dec 6 '17 at 16:58

answered Nov 29 '17 at 13:51

Kidburla

5551212

2

Use rpm -q --quiet packagename rather than piping to grep.
â€“Â Wildcard
Nov 30 '17 at 2:02

@Wildcard thanks! this really helped me. because I was running yum-install-if-missing.sh ... file ... and while file was not installed, file-libs was installed, so file got skipped. your suggestion fixed this problem
â€“Â Kidburla
Dec 6 '17 at 16:59

add a commentÂ |Â

up vote
2
down vote

In the end I wrote a simple bash script yum-install-if-missing.sh based on other answers. Not sure if there is an easier way.

#!/bin/bash

yumcmd="yum install -y"
for var in "$@"
do
 if ! rpm --quiet --query $var; then
 yumcmd="$yumcmd $var"
 fi
done

echo "ABOUT TO EXECUTE: $yumcmd"

eval $yumcmd

It can then be executed as: yum-install-if-missing.sh packageone packagetwo and so on.

edited Dec 6 '17 at 16:58

answered Nov 29 '17 at 13:51

Kidburla

5551212

In the end I wrote a simple bash script yum-install-if-missing.sh based on other answers. Not sure if there is an easier way.

#!/bin/bash

yumcmd="yum install -y"
for var in "$@"
do
 if ! rpm --quiet --query $var; then
 yumcmd="$yumcmd $var"
 fi
done

echo "ABOUT TO EXECUTE: $yumcmd"

eval $yumcmd

It can then be executed as: yum-install-if-missing.sh packageone packagetwo and so on.

edited Dec 6 '17 at 16:58

answered Nov 29 '17 at 13:51

Kidburla

5551212

edited Dec 6 '17 at 16:58

answered Nov 29 '17 at 13:51

Kidburla

5551212

answered Nov 29 '17 at 13:51

Kidburla

5551212

answered Nov 29 '17 at 13:51

Kidburla

5551212

2

Use rpm -q --quiet packagename rather than piping to grep.
â€“Â Wildcard
Nov 30 '17 at 2:02

@Wildcard thanks! this really helped me. because I was running yum-install-if-missing.sh ... file ... and while file was not installed, file-libs was installed, so file got skipped. your suggestion fixed this problem
â€“Â Kidburla
Dec 6 '17 at 16:59

add a commentÂ |Â

2

Use rpm -q --quiet packagename rather than piping to grep.
â€“Â Wildcard
Nov 30 '17 at 2:02

@Wildcard thanks! this really helped me. because I was running yum-install-if-missing.sh ... file ... and while file was not installed, file-libs was installed, so file got skipped. your suggestion fixed this problem
â€“Â Kidburla
Dec 6 '17 at 16:59

Use rpm -q --quiet packagename rather than piping to grep.
â€“Â Wildcard
Nov 30 '17 at 2:02

@Wildcard thanks! this really helped me. because I was running yum-install-if-missing.sh ... file ... and while file was not installed, file-libs was installed, so file got skipped. your suggestion fixed this problem
â€“Â Kidburla
Dec 6 '17 at 16:59

add a commentÂ |Â

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