Revisions to Setting an environment variable before a command in Bash is not working for the second command in a pipe

Remove duplicated word.

Source Link

edited Jan 9 at 7:24

10k
146
85
124

Use env.

For example, env FOO=BAR command. Note that the environment variables will be restored/unchanged again when command finishes executing.

Just be careful about about shell substitution happening, i.e. if you want to reference $FOO explicitly on the same command line, you may need to escape it so that your shell interpreter doesn't perform the substitution before it runs env.

$ export FOO=BAR
$ env FOO=FUBAR bash -c 'echo $FOO'
FUBAR
$ echo $FOO
BAR

Use env.

For example, env FOO=BAR command. Note that the environment variables will be restored/unchanged again when command finishes executing.

Just be careful about about shell substitution happening, i.e. if you want to reference $FOO explicitly on the same command line, you may need to escape it so that your shell interpreter doesn't perform the substitution before it runs env.

$ export FOO=BAR
$ env FOO=FUBAR bash -c 'echo $FOO'
FUBAR
$ echo $FOO
BAR

Use env.

For example, env FOO=BAR command. Note that the environment variables will be restored/unchanged again when command finishes executing.

Just be careful about shell substitution happening, i.e. if you want to reference $FOO explicitly on the same command line, you may need to escape it so that your shell interpreter doesn't perform the substitution before it runs env.

$ export FOO=BAR
$ env FOO=FUBAR bash -c 'echo $FOO'
FUBAR
$ echo $FOO
BAR

added 341 characters in body

Source Link

edited Jun 26, 2019 at 4:27

benjimin

4.6k
1
35
53

Use env.

For example, env FOO=BAR command. Note that the environment variables will be restored/unchanged again when command finishes executing.

Just be careful about about shell substitution happening, i.e. if you want to reference $FOO explicitly on the same command line, you may need to escape it so that your shell interpreter doesn't perform the substitution before it runs env.

$ export FOO=BAR
$ env FOO=FUBAR bash -c 'echo $FOO'
FUBAR
$ echo $FOO
BAR

Use env.

For example, env FOO=BAR command. Note that the environment variables will be restored/unchanged again when command finishes executing.

Use env.

For example, env FOO=BAR command. Note that the environment variables will be restored/unchanged again when command finishes executing.

Just be careful about about shell substitution happening, i.e. if you want to reference $FOO explicitly on the same command line, you may need to escape it so that your shell interpreter doesn't perform the substitution before it runs env.

$ export FOO=BAR
$ env FOO=FUBAR bash -c 'echo $FOO'
FUBAR
$ echo $FOO
BAR

Source Link

created Jun 26, 2019 at 4:19

benjimin

4.6k
1
35
53

Use env.

For example, env FOO=BAR command. Note that the environment variables will be restored/unchanged again when command finishes executing.

Collectives™ on Stack Overflow

Return to Answer